Top Definition
When the weather is just right and the humidity is at the right point to make one's balls appear extra large.
When I looked into the mirror this morning I knew it was a big ball day. Better call up my girl and make the porno now!
by TA3 July 21, 2009
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×