a person who is not careful or bold in their word selection.
yo that chic tanya got a hairy tongue. she stay talking shit about somebody.
by Bruce Bowen March 23, 2007
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when someone smokes for too long and there tongue tints dark brown and *in extreme cases* will look like its covered in hair
1. David really needs to stop smokin' cigars
2. i know, i hear hes got a hairy tongue!
1. huu... *pukes
by suesmoose August 08, 2008
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1. A benign (but disgusting) bacterial growth in the mouth that causes the tongue to become black and fuzzy. May spread to the teeth.

2. The grossest thing ever.

3. The side effect listed on the back of Pepto-Bismol packaging as "a harmless darkening of the tongue."

4. The #1 reason to never take Pepto-Bismol.
You: I woke up this morning with Black Hairy Tongue.
Friend: Ew. You shouldn't have taken pepto before bed!
by Kiwi27777 December 13, 2009
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