a term which one may use to humour a situation or insult a peer in an amusing fashion. Often used by males about women to describe a womans sexual desire for that individual male.
Telling a friend:
Kyle: "Jade is so wet for me i need a snorkle when i go down on her."
Zac: "i know man, i heard its like an ocean."
This would be the action of 'snorkling'