1 definition by Steven Runkel

Top Definition
While having anal sex with a girl you push her head into the toilet and thrust,she will grasp for breath and make motor boat noises.
Steven Rose: Dude i made Joci do a Illinois mega motor boat last night
Jase Runkel: You must have almost drowned her!
by Steven Runkel January 24, 2012
Mug icon
Buy a Illinois Mega Motor Boat mug!