A person who is suddenly, and probably artificially, very friendly to you or another person. Usually only used when the prior relationship was less than friendly or when the person is trying to get something.
Annie: Let's see a movie tonight.
Betty: What about Chloe? Don't you want to invite your new best friend?
Annie: As if.
by raindog469 February 25, 2006
Get the new best friend mug.
also see new favorite person / new favourite person

term of acceptance coming after someone has praised the works or acts of the author or speaker.
Great Idea! I'll get to work on it right away!


You, sir, are my new favourite peson.
by Gumba Gumba April 10, 2004
Get the new best friend mug.
Something awesome (especially something unexpected or surprising) that makes your life easier or in some way better; a declaration of love.

Also, part of a childhood playground threat.
Wow! I had no idea that accurately graphing parabolas could be so easy! This TI-83 is my new best friend!

Alice, I can't believe you did that! Wow! You're my new best friend!

That was SO much fun! Rock climbing is my new best friend!

You didn't pick me first for your kickball team yesterday. I hate you now. But that's okay. Sally is my NEW best friend.
by Lady Chevalier May 23, 2005
Get the my new best friend mug.