it's just another way of saying "they're a Lesbian" without actually saying it.
guy: "hey, know that chick judy?"
girl: "yea, what about her?"
guy: "word on the street is that she prefers tacos over hotdogs"
girl: "whut? "
guy: "in other words she's a taco muncher"
girl: "ahh, so is she single?"
guy: "seems so"
by grass_head November 20, 2020
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someone who munches on vagina of a dirty sort
dude, i'm such a taco muncher, my breath stinks from last night. wana sniff?

or

dude, ur such a taco muncher, your breath stinks from last night,

by Danielle Cross, August 11, 2008
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That Dustin Wenninger kid out ran the cops when stealing my car that taco muncher. He even on cross country and eating my tacos
by Lead_Ballz October 4, 2004
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Man, that girl was dirty and I ate her. She made me a taco muncher!
by Ndiznate September 10, 2023
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