Person who acts like he's sniffed too much gasoline, glue etc. Possessed of a confused, disconnected brain.
I want a scalpel, not a forceps! You are such a fumer!
by gnostic1 August 6, 2010
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The funny side of being so angry at a bad joke.
Mark called me, and told me another joke... I'm fumerous.
by Doctor Awesome July 15, 2015
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A vagina that puts off fish-like fumes
A woman's genitals that has an aroma similar to low tide at the bay
I slept with the town slut and surprisingly she didn't have a tuna fumer.

I went home with a girl I met at the local pizza place, and her vagina smelled like anchovies, a real tuna fumer!
by DoDa September 21, 2012
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Someone who seems dead set on annoying you or just persistent on making your life hell
Me fuckin ma's a proper fumer
by Dogn't November 14, 2018
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