When a guy's penis moves really fast inside a girls pussy causing her to scream really loud!
Chad and Kiersten were goofing off at kmart and saw a Mattress display Chad threw Kiersten on the bed ripped off her clothes and started Thrusting her in the middle of the store.
adj. Synonym for bangin', when something is really awesome. Part of the new craze of using sexually vamped words in common conversation, because its edgy.
The thrustin dustin is a home made double ended butthole with a moustacheattached to it so two gay dudes can bone it while gazing deeply into each others eyes and cum on each others dick head.
Cole: "Hey Scot, let's both bone this crazy little thing with a moustache on it and gaze into each others eyes deeply."
Scot: "Sounds great, make sure to cum on my dick head, and use a ridged hip thruster attachment on the thrustin dustin so we don't break our boners."