Top definition
When yo baby mama's mama have a boyfriend and think he her husband 'cause he live with her and don't even pay rent.
My thanksgiving was so ill! My father in flaw got all drunk ass and pissed in the punch bowl. My mother in law yelled at him he went off and told everybody to get out his house. That dude so flaw. fushigi ass daddy wannabe.
by Froman abszero September 08, 2011
Get the mug
Get a father in flaw mug for your Facebook friend Nathalie.