Top Definition
In serious cases the partition between the anal passage and the vaginal passage can become compromised and fecal matter can pass into the vagina.

Thus when a queef (or vaginal flatulence) occurs, it smells of fecal matter, quite similar to a fart.

This is the grundle-queef. Named for the common ground.
Woman 1: Oh shit I just queefed
Woman 2: So?
<pause>
Woman 2: Oh god, is that a grundle-queef?
by grundletrouble January 30, 2010

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