1 definition by ws1992

Top Definition
A most vile habit where a person removes their pants and leaves a dump on the top of their friends stair case and then leaves it overnight for the friend to clean up.
"Jono Whitby had a dump on his mate stairs"
"Ew, What the fuck. He is a right stair dumper"
by ws1992 December 13, 2011

Mug icon
Buy a Stair dumper mug!