Dick Kangaroo
When you are wearing a pair of boxers or loose fitting underwear and your cock flops out thus making it jump out like a kangaroo
Eddie: Hey Tayler what's up?
Tayler: Bro, you definitely have a dick kangaroo going on right now.
Eddie: Ahhh, shit!
Tayler: Bro, you definitely have a dick kangaroo going on right now.
Eddie: Ahhh, shit!