A phrase that can be used synonymously with phrases like "Are you kidding me?" , "You've got to be kidding me!" or " Naw, I'm just kidding."

Usually used to express disbelief.
Ex. 1

Person No.1: "Dude, I heard that Tanner knocked up that chick you wanted to fuck!"

Person No.2: "Dude, are you ballsing my tits right now?"

Ex. 2

Person No.1: "Dude, I can't go to ozzfest with you, bro."

Person No.2: "You've got to be ballsing my tits.."

Ex. 3

Person No.1: "Hey bro, I'm moving away."

Person No.2: (starts crying)

Person No.3: "Naw, man. I'm just ballsing your tits!"
by D-Pump June 15, 2008
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