1 definition by Mr. Weatherspoon

the combonation of bone and dirt forming BIRT
it follows under the lines of skankish
suckin like 10 cocks at the same time being double penetrated while gettin two dicks at the same time in the nussie
Clearence- "yo you know that girl jenny in our grade?"

Thaputus- "Eww that girl is so fucking birt"
by Mr. Weatherspoon July 5, 2006
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