1.Reference to testicles, or bravado.
2.Expletive, expressing ones dissapointment with a situation

1. A different, funny way to say "nuts"

beavis & butthead's word for nuts

Testies. They guys in the happy sack.
Balls. Testicular cancer meat. Nuts.

Derived from the common definition (see above) and used as a nickname in some circles to refer to McDonalds' Chicken McNuggets (occasionally as "McNards"), likely as a suggestive jab at the ambiguous, un-chickenlike consistency they had prior to the chain's conversion to all-white meat nuggets as well as their ominously reliable, vaguely unnatural shapes.

A male who participates in extreme activities usually on a random basis. These activites are so out of the ordinary that the male induvidual is said to have "big balls".

Slang, or bawdy term for a women's breasts