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A short vaginal massage, typically focused on the clitoris.
If you're good you'll get a clam tap.
by realist_98 April 12, 2011
The female equivalent to "tea bagging".

Description: A female repeatedly tapping her gentile region on the head of another person with or without clothing.
"To announce her victory over her boyfriend when beating him at his favorite game Kelly clam tapped his ass"
by Ivana tap December 23, 2013