To ejaculate in your pants.

(variants: pants or silkies may replace jeans, in may be added) to orgasm in your pants due to excessive sexual excitement(the second variant is said of females)

When someone gets overly excited about complete bullshit for absolutely no reason

to have a sexual orgasm with only visual stimulation

when youwatch way too much porn and you just blow a load off in your jeans. It creams up your boxers and gets nasty after a while