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That unspoken, nagging state every man or woman in every profession, no matter how successful they have been, feels long after they have retired.
Young adults are generally immature and rebellious, but most outgrow that phase of their lives. However, some egomaniacs like Donald Trump and Elon Musk stay immature and petty indefinitely, because their racist or rude tweets seem to prove that their immaturity is incurable.
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by MathPlus November 15, 2018
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2
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? Well...you'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.

Karl: Oh...well...YOU LIKE MEN!!! MAAAN LOVVEEERR

Bob: Wow. Your immaturity was so bad I might have to jump out of a window.
by Metalhead For Life November 10, 2006
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3
an unwillingness to recognize, like those around you, that your head is up your rear end, and you like it there.
by deviant May 08, 2003
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5
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 14, 2005
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6
When Your 14 Year old son Looks up ballsack on the urban dictionary and Calls his friend a ballsack
by JudgeJudyMothafuckas June 05, 2018
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7
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 07, 2003
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