an acronym standing for Jizz In My Pants. Used to describe exciting events, one may say "I jimped" without actually jizzing in their pants, because if it was a chick, that would be weird.
1) verb when someone unbelievably popular/fit says hey to you or has some sort of interaction physically/mentalyl/cyberally so that you, subconsciously, jizz in your pants.
1).elle: hey
boys: (aside) oh shit, i fucking jimped everywhere, i need to change my underwear
2).oh my lord the other day jessica alba fucking winked at me, i fucking jimped all over the place had to change my trousers as well as my pants