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1.
Someone who busies oneself in the sordid pursuit of vagina.
My roomate in college....now that man was a bonified twat monger!
by dumb ironworker January 18, 2007
 
2.
A context-sensitive term of either endearment or rebuke.
Coming for a break, twatmonger?
or
Derek, you're such a sausage-fingered twatmonger!
by Bellser June 24, 2006
 
3.
A person who is involved with twat in a petty and/or contemptible way.

See also fishorcheesemonger.
Example 1
Person 1: Hey where's Billy?
Person 2: I don't know -- that twatmonger is probably elbow deep in cunt right now.

Example 2
Person 1: So I'm not sure why the girl I'm trying to date is upset with me.
Person 2: Maybe because you're trying to date her but you flirt with her friend who likes you in front of her face.
Person 1: No dude it's cool though because I don't like her friend like that. I just like flirting with her.
Person 2: *Sigh*. Piss off, twatmonger.
by I'm Nice May 05, 2010
 
4.
literally, a vendor (trader) of twat
Kyle is the biggest twatmonger this side of philadelphia.
by corrolationmajor September 17, 2006
 
5.
A lesbian. Monger as in some fucked up version of the french "Manger", to eat. Literally "twat eatter"
"Why is she talking in such a deep voice"
"She's a raging twatmonger"
by BigSpazz February 17, 2009