Top Definition
Noun. Sexual intercourse between two consenting males wherein spherical plastic objects (ping pong balls) are lubricated with cooking grease (typically Crisco) and inserted into the recipient's rectum.
Male 1: "Bro, I totally want to take you back to my loft in uptown and give you a Cleasby."

Male 2: "That sounds brotacular, bro. Let's go back to your place and have a big old Cleasby Brodeo!"
by Mean little Jenny July 31, 2009
5 Words related to Cleasby

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