A male puts his nose in another males ass to where the point he can not breathe and he starts to use the other males dick as a breathing apparatus.
Derek: Did you hear about Justin at the party.

Jordan: No, What happended?

Derek: They walked in on him doing the D-Swan Snorkel to this other dude.

Jordan: No Way! Nasty!
by Tim Meyer 09 November 19, 2010
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