Slang term for cocaine. The term refers specifically to cartoon character Judy Jetson, referencing the white color of her hair and how it calls to mind the white color of sweet, sweet cocaine. "Judy" can also be used as code in conversation, so as to refer to the drug without calling undue attention to one's illicit habits, as well as for humorous effect.
1. Judy's been such a frenemy.
2. Will Judy be at so-and-so's house tonight?