To ejaculate in an extremelyshort period of time, to the point of embarrassment.
Guy 1- "Did you hear Jim and Neha hooked up last night?
Guy 2- "Oh yeah, I actually talked to him about it. He said they went at it for a good half hour!"
Guy 1- "I dunno dude. Neha said as soon as he took his pants off he completely afapped."