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1.
A late middle aged to older homosexual man that joins a health club in order to lurk around the shower room (usually fully naked) in order to gawk and salivate over younger men as they get dressed and undressed.

Typically characterized by a slumped posture, thin gray mustache and weasel-like eyes.
Yeah man, I bet he is a shower hyena...accidentally drop your towel and you will hear him pant like a hyena
by wrich73 August 05, 2010