Top Definition
a person's 21rst birthday. It is a day where you can legally drink alchol.
On my big 21 I became so exicted that I got alchol poisning and died.
by Neagonant April 15, 2006
4 Words related to big 21

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.

×