Top Definition
An amalgamation of the words 'grandpa' and 'gay', meaning homosexual.

Used to describe a grandpa who is gay, a gaypa.

Can also be used to describe someone who looks old/appears to be a grandpa and exhibits gay tendencies.

Commonly used as a nickname.
Chris, from now now I'm gonna call you gaypa.

Chris, you are such a gaypa!
by Jude D.D. April 24, 2009
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