A
word used as a vulgarity substitute, when conditions
don't allow for a
word such as "nutsack" or "dick". Also, is mildly entertaining to bystandards with a good sense of humor when said loudly in an exclamatory fashion, similar to the way a vendor at a sports game would say "cold beer".
My aunt and
uncle were in the room when i stubbed my toe, so instead of screaming "fuck", i shouted, "Ballsweiner!"
or
Why Jimmy, that'
s a lovely BALLSWEINER you've got there!