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Becoming friends instantly because of some event.
Lana is not going to become insta friends with her Dad, who was never in her life, just because he gave her a credit card.
by MACbihh April 03, 2009
0 1
The most annoying people in existence and usually leave you guilt-ridden when you get rid of them. Usually are people who you have no interest in gaining any form of relationship with, but one friendly remark and you have a new buddy.

Terry: *Sitting on the bus*

Hoit: Hey Terry, nice shoes

Terry: Uh, yeah...thanks...

Hoit: OH MY GOD we are exactly alike

Terry thinks: Goddammit insta-friend...


Jack: Hey Josh, do these stick-


Jame: Hey man, wtf that was harsh

Josh: I don't need another insta-friend
by The PBEEF October 01, 2009
5 0
When you meet gregarious friends of a friend of yours and they automatically become your friends, too. While there's potential for meaningful relationships, instafriends usually remain cheerfully superficial.
"I went to a party with Frank, he introduced me to Sally, Joe, and Bob. We all exchanged numbers, yay, three instafriends!"
by hypello November 23, 2003
4 0
1. Upon your first encounter with a person formerly unknown the instance where you are BFFL. Instafast like the drive thru at Starbucks.
Upon returning from cruise one Navy Sailor to a Navy Wife instantly hit it of as BFFL over a few beers and a wicked game of Rummy.

BAM Instafriends for life!!!!
by !3blackcats December 17, 2008
4 1
When a person, not having real friend's make's them up. ie imaginary
Oh, look it's sarah, she has to make insta-Friends cause she's to much of freak to get real one's. Let's go laugh in her face.
by Fitz Bailey January 21, 2007
6 8