Jim Hat
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!
Jim-jam jimmy hat
Instead of the conventional approach of reaching over to one's bedside table and finding your favourite pack of jimmy hats, it is much easier to 'gather' (or more conventionally 'cluster') one's jim-jam (pyjama) bottoms in order to create a make-shift, yet effective, J-hat.
Timmy: "Hey Jimmy, guess what happened?!"
Jimmy: "What happened Timmy??"
Timmy: "Well Jimmy, I ran out of condoms last night so I had to use my jim-jam jimmy hats."
Jimmy: "What happened Timmy??"
Timmy: "Well Jimmy, I ran out of condoms last night so I had to use my jim-jam jimmy hats."