I.B.S. stands for Itchy Ball Syndrome. Applying to most males, when sweat forms inbetween the crevices of your ballsack and inner thigh. To releive yourself from this horrid disease a simple pinching motion to get your balls away from your leg is used.
by Soleau October 16, 2005

by Frito_Pendejo June 18, 2007

Shortened form of "Itchy Butthole Syndrome". Caused most often by having multiple Anal Voids in a short period of time and/or an analingorgy.
by Stas April 05, 2003

Identified Butt Snatcher: The close cousin of the UFO's. The aliens that drive the IBS have been identified and scientifically classified. Instead of probing the ass, they simply probe it with their own "Tool".
by bobby April 05, 2003

Man 1:My god, I've got a bad case of I.B.S
Man 2: Wow, how long has it been, man?
Man 1: About a week.
Man 2: Wow, how long has it been, man?
Man 1: About a week.
by Zhyre December 26, 2007

Guy: Hey, I'm just going down to the store to grab some beers for tonight.
Girlfriend: Don't you remember, we're going to my dad's house for a fathers day dinner?
Guy: I.B.E.
Girlfriend: Don't you remember, we're going to my dad's house for a fathers day dinner?
Guy: I.B.E.
by cyberdude2007 June 17, 2008

irritable bowel syndrome
caused by being too "sanitary" to use public bathrooms.
casues severe stomach aches until "relieved"
caused by being too "sanitary" to use public bathrooms.
casues severe stomach aches until "relieved"
by E.T December 20, 2006
