Dipping one's balls into someones belly button which is filled with fresh warm cum. After the dip the dripping balls are slapped onto the other persons forehead.
When a person (male) reframes from showering for a long period of time and starts to develop a unbearable smell around their nut sack. On rare occasions stinging aroundthe balls may also occur
Lindsey was about to give Chris some dome until she smelled his swamp nuts.
As if the vinyl seat and the lie detector hooked to my arm weren't cause enough for swampnuts, the detective also closed all the windows and brought in a space heater.