by Jew Dog August 16, 2007
The act of slapping another person in the face with your cock. Hence leaving a large, red mark on their cheek.
That bitch wouldnt shut the fuck up so i had to fadunk her from across the room. Knocked the bitch out cold for two hours.
by Asshat November 19, 2003
(v.) to smack someone in the face with a penis that has recently ejaculated to leave a mushroom print. loads of fun.
Haha Jeff fell asleep and Matt fadunked him! I always thought those two were weird. Fadunk! Fadunkity dunk dunk dunk.
by anonymous November 29, 2003
(v) The motion of taking ones penis, and slapping it across anothers face in a brisk motion; normally cauing severe head and neck trauma. (One is usually fadunked while the "fadunker" is in the process of ejaculation."
As the 5 year old mexican walked down the dark alley, he was randomly fadunked by a large black, hepes infested penis.
by Bosqueef March 9, 2005
by jackroll June 10, 2006
guy wih a big cock tha slaps you in the face with his abnormally large penis, hence leaving a bruise shaped like a mushroom(mrs winslow's haircut)on the side of their face
by not keaton May 20, 2004
by Fadunker September 12, 2003