FDG

Acronym for Flaccid Dick Grind

When you tryna get it on with that pretty lady, but your penis refuses to cooperate
Pretty lady: let's get it on ;)
You: sorry pretty lady, I'm on that FDG
by DumbBird February 14, 2016
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FDG

Acronym for Flaccid Dick Grind

When you tryna get it on with that pretty lady, but your penis refuses to cooperate
Pretty lady: let's get it on ;)
You: sorry pretty lady, I'm on that FDG
by DumbBird February 14, 2016
Get the FDG mug.