1 definition by Brainietta

Underseater

An underseater is when someone defecates on the outer edge of the porcelain toilet bowl, underneath the seat and then carefully brings down the seat, resting it on top of and hiding the poop from view. When the next person sits on the toilet the users weight compresses the seat on the poop, spraying it in all directions.

Dan got Rick good with an underseater prank. The poop sprayed all over his legs!

by Brainietta August 4, 2020