betty

1. (slang) A short bar used by thieves to wrench doors open; a jimmy.Examples: "No modern Lycæum vvill ever equal thy Glory, […] deſcribing the povverful Betty, or the artful Picklock, […]"slang

2. (slang) A picklock, skeleton key; a tool for opening locks.Examples: "After a quick meal at a tea shop, we found ourselves in the hallway at the Midland Hotel, where he removed a skeleton key, or “betty” as he called it, from his pocket and inserted it in the keyhole. […] Once they were out of sight, I fumbled about with the betty for a few moments before the lock finally clicked open."slang

3. (archaic, derogatory) A man who performs tasks that traditionally belong to a woman; (originally) an effeminate or gay man.Synonyms: cot-betty, cot-quean, henhussy, mollyarchaicderogatory

4. (US, archaic) A pear-shaped bottle covered with straw, in which olive oil is sometimes brought from Italy; a Florence flask.Examples: "On olive oil in casks, twenty cents per gallon; olive salad oil in bottles or betties, thirty per centum ad valorem"USarchaic

5. (slang, slightly pejorative) An attractive woman; a babe.Examples: "Isn't my house classic? The columns date all the way back to 1972. Wasn't my Mom a betty? She died when I was just a baby. A fluke accident during a routine liposuction. I don't remember her, but I like to pretend she still watches over me."Synonyms: beautiful womanslang