Devil's Trifle

A sex move in which after a vagina has been filled with cum, one proceeds to chug sherry through the orifice before inserting two or more "lady's fingers" (actual lady fingers, but if you have none to hand, the sponge variety may be substituted) and giving it a good mix. Intoxication may follow.

"I hear Jeff and Barbra partook in the Devil's Trifle last Tuesday afternoon"
"Good grief."