Top Definition
A disgruntled nut sack, most commonly found on overweight adolescents.
"Wow dude, your nuts look like a mashed up piece of bubblegum. That is definitely a silly sack."
by Rodbonginator January 09, 2009
9 Words related to Silly Sack

Free Daily Email

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

Emails are sent from We'll never spam you.