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1 definition by Omar via AJ

 
1.
Used to describe a person, particularly a man, who is socially construed as straight by those around him/her, but in actuality is gay. Someone who goes undected on the gaydar spectrum. Thick, deceptive skin on outside, but a fruit on the inside. Based on the avocado being widely misnomered as a vegetable, when it is indeed a fruit.
Amber: I had no idea that Jerry was gay! He seems so...so... hetero!

Omar: Yeah. Everyone thinks that. He's an avocado.
by Omar via AJ August 09, 2008