A stinky grimbus is a sexual act, where you buy a Hotwheels car of an American, yellow school bus. You ingest a ton of laxatives and insert the school bus inside your sphincter.
You then your partner to thrash your bum with his/her strap-on or meat sword until you shit yourself, ejecting shit inside yourself covering the school bus which is still inside you, in your liquidy doodoo. You then retrieve the school bus from your anus and find that it is now a dark brown instead if yellow and looking quite grim. A "grim-bus" and quite stinky
You then your partner to thrash your bum with his/her strap-on or meat sword until you shit yourself, ejecting shit inside yourself covering the school bus which is still inside you, in your liquidy doodoo. You then retrieve the school bus from your anus and find that it is now a dark brown instead if yellow and looking quite grim. A "grim-bus" and quite stinky
"Old-mate fell asleep first at the party, I think I'm gonna pump him full of laxatives and give him a stinky grimbus to wake him up."
by Kreeper102 March 14, 2024

by Radnorfart March 28, 2022

A very pleasant girl who is one of a kind and everything about her is amazing other than the fact she stinks, unless you like that.
by Truthfull meanings April 23, 2023

by anonymous October 14, 2020

by Lilaa3 March 16, 2022

When an individual shoves skittles up their partners anus for the sole purpose of eating them back out for a bit of added stink.
by SlippeySam January 27, 2024

by Poopstamp August 30, 2023
