A wedding ring on one's finger making them unavailable for dating.
Jane: Wow, look at that hottie over there!
Sue: Yeah, he is sexy, ohhhh but he has finger fungus.
Jane: Damn!
by sarahmaine April 16, 2008
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school yard taunt. Denotes the person is icky
"that Tommy is a crusty finger fungus butt"
by Peter Rothe March 06, 2008
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Where you finger a blue waffle and get all of the puss on your fingers
oh dude, I heard you got fungus fingers of that girls blue waffle!
by westy lad February 25, 2011
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