Platelingus 

plate-a-lingus noun

The act of licking one's plate clean, to complete and utter satisfaction - often with a great degree of sensuality.

The most intimate form of completing a meal - to lick the entire plate free of all deliciousness.

The pot roast was so delicious, John engaged in platelingus to lap up the remaining gravy.

Dude, this homemade BBQ sauce is gonna get some platelingus after I finish these ribs.

Platelingus by Nails11 July 7, 2011

plátilingus 

The passionate desire to thoroughly bury your face in the remnants of your glorious dinner or desert and vigorously lick it clean so that there's no evidence that any food product ever graced the plate.

Oh god, Christopher's chocolate tower had me quaking with desire to perform plátilingus on the leftover creamy, thick sauce.

plátilingus by madcat078 June 16, 2017