Top Definition
The sexual act of having intercourse on the beach,pulling out,dipping your member in the sand ,and then reinserting it.
"Just as Judy was about to cum,Tommy slipped her a Sneaky Neptune and sent her over the edge"
by Motor76 March 14, 2010
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.