The act of trying to consume alcohol without detection. Sometimes applies to drinkers under 21, but is more often used to describe an adult who enjoys an alcoholic drink at potentially inappropriate times.

May also be shortened to just "snorkel"
She keeps a small flask in her purse for the occasional sneaky snorkel.

Where's Chris?
I think he's outside having a snorkel.
by rassoodock September 7, 2009
Get the sneaky snorkel mug.