D-Swan Snorkel
A guy shoves his face up another guy's butt until he can't breathe and then starts breathing through his buddy's penis like it's a life raft.
My cousin did this at the gym and got kicked out for snorting farts.
At the party, Dave did a D-Swan Snorkel on Mike and got dizzy.
During the bus ride, Jake did a D-Swan Snorkel on Paul and almost passed out.