Something that makes life a lot more fun.

Though being completely immature will probably have adverse effects on your social life, education, and life in general it'll be more fun!
1. Zoe: Look John, I'm sorry, I'm breaking up with you.

John: Yeah?'ve got herpes!

Zoe: This is why I'm breaking up with you! You're so god damned immature!

John: At least I don't smell bad!

Zoe: Whatever!

John: GAAAAY!!!!

2. Bob: I'm sorry Karl...your...well...your dog died.


Bob: Wow. Your immaturity was so bad I might have to jump out of a window.
by Metalhead For Life November 11, 2006
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an unwillingness to recognize, like those around you, that your head is up your rear end, and you like it there.
by deviant May 8, 2003
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A made-up word that conceited tweens like to throw around at people who aren't conceited tweens.
Boy: Hey. so.. did you score with that guy last night?
Girl: You're so immature!!!!1
Boy: Fucking cunt.
by someone or other February 15, 2005
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When a person older than you acts liek a little kid and post retarted definitions on a website that don't make any sense ad recive little acclaim and noone likes the joke's other than other immatures people like them selves
by Anonymous May 7, 2003
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What one redneck says to another when he wants his chair back.
Hey, you done sat immature and I be wanting it back.
by Chase1204 April 14, 2008
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Doing whatever it takes to make you happy and for some people, at least they're being who they are and not the stereotype of who they're supposed to be. Your inner child. Most people believe that age defines who you are and if you don't "act your age", you're immature. "Mature" people seem to be very depressed and settle for everything even if they don't want it.
Stuck up bitch: Why is that girl coloring in a spongebob coloring book? She's so immature.

Other person: At least she's doing what makes her happy, bitch.
by hofosho23 December 1, 2010
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