What is Rusty Motorboat?
1.
When someone places their lips in the recently used/dirty butt crack of someone else, makes the "Brrrrr" sound of a motorboat, and shakes their head back and forth very quickly.
SEAN pooped himself a work and didn't have any toilet paper so KELLY gave him a Rusty Motorboat to clean him up.
See
Random Words:
1.
Clean shaved penis and genital area.
Yo I heard you had a shick dick!
Who told you that?
That chick you fucked last night
See dick, ..