A fork of Rural Dictionary
The act of flicking a fat kid's boob to where it jiggles, in a manner as if you were dipping a chip into bean dip.
This is usually done at places where kids gather to play Magic: The Gathering or have LAN parties.
Let's give that fattie a bean dip he'll never forget!
To scoop the boob of someone and yell "BEAN DIP!"
Usually done for shock value. Or you just want to touch someone's boob.
Marty ran up to Bertha, and bean dipped her.
Bertha got Marty back by slapping him.