czechoslovakian everything bagel

A sexual act which involves one party hammering gravel into the other's booty cheeks(creating the, "everything," part of the bagel.) Following this, asshole will be filled with cream cheese, creating an everything bagel.
Next, the individual will have anal sex with the other, adding semen to the everything bagel. After this, the cream cheese and semen will be eaten along with the actual flesh of the ass.

"Dude did you hear that Charlie gave Brennon a Czechoslovakian Everything Bagel last night?"

"I did, totally brutal dude."