Top definition
An obscure sexual maneuver, possibly involving a gerbil covered in crisco.
Want me to give you a Cleveland Steamer?

No...I'm in the mood for a Gundlach tonight.
by Kouwe June 11, 2010
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2
A person who is a master of carrying out acts of stupidity for comedic purposes and one who doesn't care about what people think of his/her retardation but rather embraces it.
Person 1: (Takes a shit on the street)
Person 2: Hahaha, you absolute gundlach!
by BiloGundlach21 February 14, 2018
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