When a guy is so overweight, that the fat from his abdomen starts to seep down into his scrotum, where there is normally no fat present.
Girl A: Soooo that guy you went home with last night... was he a good lay?
Girl B: He would have been, if he wasn't so ball fat.
Girl B: He would have been, if he wasn't so ball fat.
by Lil_Iltis April 12, 2011
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Get the Fat Balls mug.large, uncontrollably sweaty and overwhelmingly hairy testicles. These testicles usually have a strong odour you can smell across a classroom. usually when someone has big fat balls their mandem won’t suck them off anymore due to the putrid odour!
EW! can you smell peter robbinsons big fat balls from across the chemistry classroom? Connor talb won’t be sucking him off any time soon !
by festyfish November 21, 2021
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