1 definition by Bryron2

FABS

Acronym; Fresh Air Bowel Syndrome
When you go camping/get out of the urban air you're used to, and get some forest air and you get diarrhea or constipated.

Bob: Just a seecond, I'm going to the washroom
Jon: AGAIN?
Bob: Yeah, I got FABS

by Bryron2 July 29, 2010