Top Definition
By adding the suffix "est" to BFF you acknowlege that one person is your bestest bestest friend forever.

The suffix is derived from the adjective-chain big, bigger, biggest. Increasing in size until it can increased no further. This gives a new chain of BFF, BFF-er, BFF-est.
Julia, you are my BFF-est ever.
by ButterMN February 25, 2008
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.

×