Jimp, or to jimp, is the hypothetical ejaculation or "jizzing" in your pants often followed by the subject experiencing something highly stimulating or pleasurable.
To ejaculate prematurely, esp. in one's pants. From the acronym JIMP for "Jizz in My Pants", the title of a song by the group The Lonely Island.
Man, I just walked in the change room and saw Cody bent over & wearing nothing but snug-fitting black boxer briefs. I damn near jimped right then & there!
J.I.M.P. is an acronym which is a shortened way of saying 'Jizz In My Pants'. It stemmed from a video originating from Saturday Night Live. The term is used on many internet chat sites as a replacement for other acronyms such as 'ROFLMAO', for anything which the writer finds to be extremely hilarious, sexually arousing or highly enjoyable. As more and more people watch the music video, the term JIMP is becoming more and more acceptable, but it is particularly important when choosing to use this term that the audience understands its meaning, or it is ineffective.
Eventually this term will be a globally used acronym by all internet users, as more and more people watch the video clip. Currently the video has had 26,911,814 hits in total and is ever climbing.
"WOMG that's so funny it made me JIMP!" "That picture just made me JIMP ;] " "I scored the winningpoint, it made me JIMP!"
Verb. To ejaculate in one's own pants, usually in a hilariously premature fashion. From the song "Jizz In My Pants". Can also be used in the past tense as well as infinitive.