The opposite of big dick energy. Cocky rather than confident. A person who overcompansates with arrogance and belittlement. One does not need a small penis to have BDD but just lack of self assurance.
"Pete davidson doesn't have BDD."

OR
" OMG this guy keeps gloating about how much of a good guy he is and how great he is in bed"

"Oh! That's a case of BIG DICK DEFEINCEY (BDD)"
by Maisieandcassie May 13, 2019
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