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1.
when a female, 16-25 years of age, becomes heavily intoxicated at a party and has semi-consentual sex with multiple men whom she does not know and will not remember

"mystery meat" refers to the strangers' penises and "buffet" refers to the multiple partners

this differs from "Statutory Rape" (less tham 16 years of age) and "how do i not have herpes yet" (older that 25)
Girl 1: "Tina fell drank, like, 7 smirnoff ices, then she ate a mystery meat buffet til she puked on some dude and passed out"

Girl 2: "I hate it when that happens!"
by Gillionaire McHenry April 16, 2011