A "reverse motorboat". Achieved by burying one's face between a supple set of buttcheeks and rapidly shaking the head from side to side. Optionally, one may purse the lips and blow out while botormoating to emulate the sound made by a motorboat's engine.
Johnny's girlfriend didn't have much of a chest, so he flipped her over and botormoated her.
by Ronald Jeremy Hyatt December 20, 2009
1 more definition
To bury ones face into another persons ass and wiggles ones face from side to side. Similar to motor boating.
Omg! He/She has an ass you would love to Botor Moat!
by Glennyboi May 04, 2014