This is a two step maneuver - to engage in anal intercourse, in which before a coming occurs, the receiver returns the favor by immediately trying to suck a fart (their own fart) out of the administer's penis!
"Last night we went ass to mouth, and before I knew what had happened, she was high off of her cunning whippet"
by Cressticular Fortitude May 13, 2010
Get the Cunning Whippetmug.