A low pitched howling noise someone with IBS makes when they are feeling some kind of discomfort, often emotional. It can also be used to accentuate a sentence with little to no effect. The noise can be be best described as the sound that a dinosaur would make when hit by a train.
1: Zack: Joe, you're retarded.
Joe: HNNNNNGGGGGGGG

2: Mark: Man, I'm awesome at this HHNNNNGGGGG.
Jack: Nice Irritable Bowel Howl, there.
by srj1224 February 3, 2010
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irritable bowel syndrome is a type of person that makes weird sound effects when they are talking and refuses to kiss their boyfriend at the door.
Oh that irritable bowel syndrome she left my man hanging at the door and started squawking while she was telling me about a hike she went on.
by zeebeegeez November 16, 2018
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