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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