A figure of speech whose potential meaning lies within a spectrum from be cool through to STFU.
Taken from a popular parody of the 31st episode of Fox Network's X-Men animated series, by one Randy Hayes and one Xavier Nazario of My Way Productions.

'The Juggernaut' (Hayes) interrupts 'Black Tom Cassidy' (Nazario), saying "comb your beard, I don't want to hear that shit."
by Sabine91 June 14, 2008
Get the comb your beard mug.
Slang for “Calm down”, usually used in Ebonics.

Charles: OMG WHY DID YOU WALK OUT OF THE ROOM?
Dwayne: Comb your beard mutha fucka, I was hungry!
by Kevin16 September 28, 2006
Get the Comb your beard mug.