A stinky pinky promise is when you make a pinky promise but instead of traditionally kissing your hand, both people stick their tongues in the hole that their fist makes.
"I stinky pinky promise you that I'll buy you taco bell if you beat me in this video game." *both parties perform the stinky pinky promise*
by CpKlutch June 11, 2017
buy the domain for your cat site