Top definition
A rat beard is a haggard ass beard, that goes unshaven for many months. This beard is especially rat like due to the fact that it is repeatedly straightened.
Yo! Jam Masta Jay you should grow a rat beard and wear a turban, it would be rad!
by 138 Squid May 10, 2008
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2
The crook of all the beard styles. Very sparse and patchy, sometimes looks like a dirty shit pirate beard. Usually worn by metal heads or just ratty gnarly fucking dudes.
"Dude you see that guy with rat beard? Yea, the kid looks fucking gnarly!"
by dingletheberry January 02, 2016
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