When a girl is giving a terrible blow job and the guy whips his dick out and hits her across the face. This contact will leave a mark. This usually occurs when a girl has braces and is scatching a man's penis in the process of a blow job
The reason why Jennifer Aniston didnt show up to the Academy Awards is being the night before she got fadonked and had a mark that resembled my penis.
by TittyFuckHerAss March 03, 2009
to smack ones nutsack or cock against another person's face
while mary was sleeping i fadonked her
by david kain February 28, 2007

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×