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
Get the mug
Get a Banana Slap-It mug for your guy Vivek.