Top Definition
It is like punch buggie. but its on the beach.
When you see a person in a speedo, or banana hammock, you punch your friend.

Adding the "no punch back " phrase is optional.
Dude, fat dude in a speedo, "Banana Slap-It, no punch back!"
by Jeezy 117 May 27, 2009
7 Words related to Banana Slap-It

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