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1.
when your "testicles" or "balls" are in the state of having a boner.

When you have had such an incredible boner aka the boner of your life, that the boner transfered to your ballsack.(note if you are a castroti "a guy gets his balls cut off this could be a problem! please contact your doctor for more information!)
OMG look at that girl i just had a ballner!

is it morning already! man i just had a morning ballner!

a guy: lets go to hooters!

some other guy: wouldnt it be embarrassing if we went ther and my ballner broke through my pants!

a guy: ok your not coming loser!
by they call me a GOD September 13, 2009