when after pooping, you wipe somewhere between 900-1000 times and the poop still appears on the paper as if there were a brown crayonstuffed up your butt hole.
person a: I can't believe Jenn thinks Toronto is the capital of Canada!
person b: I know! She is such a brown crayon
By Vivianne
Brown Crayon
When one wipes his/her butt after defecating, takes a peak at the toilet paper right after, and the streak or smudge resembles that of a brown crayon on white paper.