An activity done in excitement or in the heat of the moment.
To clap your bottom against another bottom.

In its usual occurances "clap bottoms" will usually be screamed out by a drunk at a party, everyone will join the practice as they clap their ass with the person closest.

drunk teen: "CLAP BOTTOMS!!"
teen 2:"shutup dickweed"
drunk teen: *claps bottom*
teen 2: DON'T FUCKIN TOUCH ME YOU HOMO!

drunk teen: ...g-hey!

by 69winkies January 10, 2008
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