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1 definition by Red Fingaz

The facial expression achieved when you're taking a gigantic size bite out of a hamburger/hotdog and you expect ketchup but itstead it's fucking loaded with mustard.
"You should have seen that kid's mustard face after I falcon punched him in the testicles. Priceless."

"That old woman had a perfect mustard face after I crop dusted that elevator."
by Red Fingaz May 04, 2009
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