Top Definition
Its similar to the mile high club only a lot more dangerous and awesome. Rather than having hot sex on a plane you fuck underwater at least at a depth requiring scuba gear. It is one of the greatest achievements a guy or girl can reach.
#1) Dude I had this smokin hot dive guide the other day, she had the finest petite ass and tits, I helped her join the 60 feet deep club.

#2 No way, sex underwater. I gotta try that some time.

#1 She was screaming and cumming so hard I think the dolphins knew what we were doing.
by puntitlover October 09, 2010
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