A plumber's term for a flushed tampon, after having clogged a drainpipe for some time, the tampon collects clods of hair and other refuse, causing it to resemble a dirty furry thing with a tail.
I wish these bitches would stop flushing their goddamn tampons.. if I have to plunge for one more sewer mouse...
by DP666 June 11, 2006
Get the sewer mouse mug.A used tampon, generally that which is found through plumbing work, but also can be found anywhere after discard.
I found a sewer mouse in our hiding spot in the park. Someone must have been earning their redwings.
by dadafari December 22, 2008
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