O
- O Be Joyful
- I'll make you sing O be joyful on the other side of your mouth; a threat, implying the party threatened will be made to cry. To sing O be easy; to appear contented when one has cause to complain, and dare not.
- Oaf
- A silly fellow.
- Oafish
- Simple.
- Oak
- A rich maa, a man of good substance and credit. To sport oak; to shut the outward door of a student's room at college. An oaken towel; an oaken cudgel. To rub a man down with an oaken towel; to beat him.
- Oar
- To put in one's oar; to intermeddle, or give an opinion unasked: as, To be sure, you must put in your oar!
- Oaths
- The favourite oaths of the thieves of the present day are, "God strike me blind!" "I wish my bloody eyes may drop out if it is not true!" "So help me God!" "Bloody end to me!"
- Oats
- He has sowed his wild oats; he is staid, or sober, having left off his wild tricks.
- Obstropulous
- Vulgar misnomer of OBSTREPEROUS: as, I was going my rounds, and found this here gemman very obstropulous, whereof I comprehended him as an auspicious parson.
- Occupy
- To occupy a woman; to have carnal knowledge of her.
- Odd-come-shortlys
- I'll do it one of these odd-come-shortly's; I will do it some time or another.
- Oddfellows
- A convivial society; the introduction to the most noble grand, arrayed in royal robes, is well worth seeing at the price of becoming a member.
- Odds Plut and Her Nails
- A Welch oath, frequently mentioned in a jocular manner by persons, it is hoped, ignorant of its meaning; which is, By God's blood, and the nails with which he was nailed to the cross.
- Office
- To give the office; to give information, or make signs to the officers to take a thief.
- Ogles
- Eyes. Rum ogles; fine eyes.
- Oil of Barley
- or BARLEY BROTH. Strong beer.
- Oil of Gladness
- I will anoint you with the oil of gladness; ironically spoken for, I will beat you.
- Oil of Stirrup
- A dose the cobler gives his wife whenever she is obstropulous.
- Old
- Ugly. CANT.
- Old Ding
- See OLD HAT.
- Old Dog at It
- Expert, accustomed.
- Old Doss
- Bridewell.
- Old Hand
- Knowing or expert in any business.
- Old Harry
- A composition used by vintners to adulterate their wines; also the nick-name for the devil.
- Old Mr
- GORY. A piece of gold.
- Old Nick
- The Devil: from NEKEN, the evil spirit of the north.
- Old One
- The Devil. Likewise an expression of quizzical familiarity, as "how d'ye do, OLD ONE?"
- Old Pegg
- Poor Yorkshire cheese, made of skimmed milk.
- Old Poger
- The Devil.
- Old Stager
- One accustomed to business, one who knows mankind.
- Old Toast
- A brisk old fellow. CANT.
- Oliver's Scull
- A chamber pot.
- Olli Compolli
- The name of one of the principal rogues of the canting crew. CANT.
- Omnium Gatherum
- The whole together: jocular imitation of law Latin.
- One in Ten
- A parson: an allusion to his tithes.
- One of Us
- or ONE OF MY COUSINS. A woman of the town, a harlot.
- Onion
- A seal. Onion hunters, a class of young thieves who are on the look out for gentlemen who wear their seals suspended on a ribbon, which they cut, and thus secure the seals or other trinkets suspended to the watch.
- Open Arse
- A medlar. See MEDLAR.
- Optime
- The senior and junior optimes are the second and last classes of Cambridge honors conferred on taking a degree. That of wranglers is the first. The last junior optime is called the Wooden Spoon.
- Organ
- A pipe. Will you cock your organ? will you smoke your pipe?
- Orthodoxy and Heterodoxy
- Somebody explained these terms by saying, the first was a man who had a doxy of his own, the second a person who made use of the doxy of another man.
- Oschives
- Bone-handled knives. CANT.
- Ostler
- Oatstealer.
- Ottomised
- To be ottomised; to be dissected. You'll be scragged, ottomised, and grin in a glass case: you'll be hanged, anatomised, and your skeleton kept in a glass case at Surgeons' Hall.
- Ottomy
- The vulgar word for a skeleton.
- Out at Heels
- OR OUT AT ELBOWS. In declining circumstances.
- Outrun the Constable
- A man who has lived above his means, or income, is said to have outrun the constable.
- Outs
- A gentleman of three outs. See GENTLEMAN.
- Oven
- A great mouth; the old woman would never have looked for her daughter in the oven, had she not been there herself.
- Overseer
- A man standing in the pillory, is, from his elevated situation, said to be made an overseer.
- Owl
- To catch the; a trick practised upon ignorant country boobies, who are decoyed into a barn under pretence of catching an owl, where, after divers preliminaries, the joke ends in their having a pail of water poured upon their heads.
- Owl in an Ivy Bush
- He looks like an owl in an ivy bush; frequently said of a person with a large frizzled wig, or a woman whose hair is dressed a-la-blowze.
- Owlers
- Those who smuggle wool over to France.
- Ox House
- He must go through the ox house to bed; a saying of an old fellow who marries a young girl.
- Oyes
- Corruption of oyez, proclaimed by the crier of all courts of justice.
- Oyster
- A gob of thick phlegm, spit by a consumptive man; in law Latin, UNUM VIRIDUM GOBBUM.