Old Slang for Bozo or Bum depending on context.
Written as " 'bo ", this slang had common usage prior to the 1960s. However, in recent years the term has experienced less usage, excluding some small groups or the elderly, and should be avoided in every day use as it will most likely be perceived as slang for Body Oder
Written usage dates back to at least the 1910s, as evidenced by its use in the Union Song "The Tramp" by Joe Hill, and can be assumed as having been around prior to that point.
Documents, letters, songs, movies, and other things dating prior to the 1960s using 'bo should be assumed as referring to a bozo or bum and NOT Body Oder unless evidenced otherwise.
A play on words for Jack 'n' Coke
Meaning someone is so intoxicated that they will do homosexual acts. Usually related to someone getting so drunk on Jack Daniel's whiskey (other beverages will do) that they're willing to fuck another guy or be fucked by another guy.
Usually this is applied to homos-in-denial who just can't comprehend they like dick, so they get that little drunken push to prove they're gay since being drunk can show your true beliefs.
Hey bro, I got my roommate so drunk last night, that I got some jack 'n' cock.