- (slang) contraction of you and are
"Yo a fool."
- (slang) An interjection similar to hey.
"Yo, check this out!"
- (slang) A greeting similar to hi.
"Yo Paulie! How's it going?"
- (military slang) Present! Here!
"Sergeant: Smith? Private Smith: Yo!"
- abbreviation of year/years old
- (colloquial) shortened form of your
"Yo sandwich only has bacon in it. Want some ketchup on that?"
- (Baltimore) third-person singular, familiar
"Yo was tuckin' in his shirt! (Stotko and Troyer 2007)"