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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
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Damn that was a steezy ass kickflip son!
by niggaliciouszor April 29, 2007
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