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3.
A bestest friend is someone you can trust with anything. It's someone who makes you feel like the most special person ever.
I love my bestest friend(;
by angelaaa(= March 18, 2007
 
1.
Kind of like your best friend, except better. The superlative form of the term best friend. Opposite to worstest.
Dylan and Autumn are bestest friends.

Kim is Lea's bestest friend.

Ron wants to be a bestest friend.
by autie =) May 06, 2009
 
2.
Someone who is there for you day after day, no matter what, somebody better than a bestfriend, that has never left your side from day they got there, you have the most and best memories with them, fall out over stupid little stuff and are friends again with the hour, take stupid photos, talk about everything, the one you can trust with your life. Makes you smile by thinking about them, never fails too make you laugh or smile and always brightens up your day, bestestfriends is a promise not a label and you prove too eachother its not just for a day its forever!
bestest friend forever and always
by KatyPerryLover August 22, 2010
 
4.
2 people who are friends who get naked and fool around together. Kiss, hug, cuddle, hold hands, and sleep together.
Me and Desiree are bestest friends.
by funpun4_20 March 31, 2011