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1.
A mustache located on the vagina, created by shaving the pubes in a fashion that makes it resemble a mustache.
Girl: Hey honey, I'm thinking about growing a vagstache!
Guy: NOPE NOPE NOPE
by Dolus February 22, 2012
 
2.
A form of ladyscaping where the pubic hair is trimmed to resemble a mustache. Also looks like a horizontal landing strip.
Dude, check out the chicks vagstache.
Charlie Chaplins upper lip looks like my upper lips.
by the DUDE March 02, 2012