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A fool-proof indicator that one is getting sick. This is when the balls (scrotum) hang just a bit lower and are very flacid to the touch. Extra support might be required for older gentlemen. Sick balls is a very common occurrence among all males...unless, of course, the balls no longer exist due to being taken by one's wife or girlfriend.
Me: I'm sick.
You: How do you know? you don't look sick.
Me: I have sick balls. I am definitely sick. Wanna feel?
You: Would love to!
by hung like a bison April 07, 2011