Jim Hat is the slang word for condom. People call it a Jim Hat because Jim is a slang name for a penis.
Dude, my girlfriend is coming over tonight! I need to go to the store and buy a couple of Jim Hats!
by Legendaryben June 30, 2006
Street slang for "condom".
"Don't go nowhere without 'cha jimhat. Gotta be smarta' than that."
by Frank Klaune March 06, 2004