Top Definition
A male or female with an abnormally large penis whose bulge is often visible.
Example1
Girl1: Ewww, I would never date that guy.
Girl2: Well i know i would. See that bulge in his pants? He's clearly a slongker.
Girl1: Well now that you mention it....

Example2
Guy1: Gosh I don't know what to do. My dick keeps hitting my knee when i run.
Guy2: Gross man, I don't want to hear your slongker problems.

Example3
Guy1: That girl over there is totally a slongker.
Guy2: I didnt know girls had penises.
Guy1: ...They dont...usually.
Guy2: Wha?
by I3loop April 09, 2014

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