Top definition
When your on the toilet bowl for at least a half an hr and then you leave a huge skid mark on the toilet.
Chente: Where'd Ben go?

Fliggy: He's doing a Benji

Lord Farquaad: Oh God, he's gonna be a while. We're gonna need the hazmat suits when he's done.
by Icknamesj August 23, 2013
Get the mug
Get a Doing a Benji mug for your father-in-law Abdul.