Top Definition
After felching badly, with time, the anus gets crusty, so the felcher has to go back and Pizza Crust to finish the job.

Also used when semen is ejaculated into an anus, but never retrieved by felching. Then someone Pizza Crusts.
"I guess this bitch got mad when I didn't felch properly, because in the morning she made me go back and do some pizza crusting."
by Jessticle Cockins August 08, 2008

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