A suprise attack which involves sneaking up upon an unsuspecting victim, grasping their genitals from behind and pulling them up and towards you as they are crushed.
"I bent over to pick up a toonie, and this bitch comes up behind me, grabs my nuts and gives me a dumptruck!"
By Serena
Dumptruck
the act of shitting while positioned in such a way that the fecesfall into the excreter's own mouth.
Refers to an ass that is so phat, everyone in the room takes notice. You can't hide a dumptruck, you just gotta appreciate it. Dumptruckbooties often jiggle while walking, are noticeable under any kind of clothing and attract the attention of masses.
Most notable when wearing skinny jeans, yoga pants, leggings, thongs or better yet; nude, a dumptruck is often perceived as very attractive and sexy.