The act of placing your hand over your mouth and wiping in a downward motion, then smiling like a man posessed after going down on a lady.
The viking smile is scored equally regarding force of wipe and lenght of smile.
Only men sporting a goatee or beard can acomplish this feat properly.
Completing a Viking Smile will minimize your chances of being able to keep a flavor saver
You should have seen the Viking Smile on Jims face when he came out of the room