A metaphorical award of achievement with army overtones for the accomplishment of having anal sex with a girl for the first time.
Did you hit that ass last night? hell yeah Yo! little Ronald just earned his brown stripes everyone! thanks man

Yo man, I earned my brown stripes last night.
by calducciano May 14, 2005
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the most hideous sweater you have ever seen, sometimes referred to as "shop rag", they must be in-expensive as people seem to purchase more than one. The material must also be quite thin as holes are common.
Wow, cool brown striped sweater, did you get that at a thrift store
by Big Johnsen March 27, 2014
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Brown racing stripes occur when:
1. You do not whipe yourself well enough
2. You pinch one off a bit to soon
3. Your farts are so vile they stain your underwear brown in the area of your butt-crack
That son of a bitch did'nt wipe so he has brown racing stripes.
by Clay Monette October 6, 2003
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