cream in one's jeans verb3 •(vulgar) To ejaculate while wearing one's trousers; to experience an orgasm while clothed.And you always cream in your jeans when your neck breaks. It has something to do with the pressure on the spinal cord being transmitted through the prostate. — 1975 •(vulgar) To become wet with sexual arousal. •(vulgar) To be thoroughly excited or delighted.First time I was in here I come in with a Chinese M.P. We busted right in, that M.P. creamed in his jeans when he sees this colonel. — 1951 formscreamed in one's jeans · creaming in one's jeans · creams in one's jeans