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1.
When a man has a trail of hair leading down his lower back to his butt.
Dude, will you help me shave my angry trail?
by claptrap414 April 30, 2011
 
2.
The Angry Trail is when a large man's beard grows so large, it entangles with his chest hair and travels down to his pubic region.
If a fat hairy lumber jack had a really big beard and it tucked into his shirt it combined with his chest and pubic hair, creating the angry trail.
by RzR_rawr June 24, 2009