Top Definition
The tuft of hair that sticks up at the back of your head around your 'crown', usually when you get out of bed and are too idle to brush/comb your hair.
Look at his falf! Scruffy fucker could at least brush his hair!

"Just got out of bed Old Lad?", "No why?", "Because you have a King-size falf!", "Bastard! I bet I look a right prick!", "You sure do!"

by Cundrun March 15, 2007

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