Immature 

Someone who enjoys blowing random things up for no reason and lights things on fire. They typically say everything is gay and makes crude and gross remarks when unnecessary. They also most likely deny the fact that they are immature

Did you see that guy making that bomb? He is so immature...

Immature by Canthandleyou December 5, 2015

Immature 

Being childish. Not acting adult like.

Calling in to work to play Magic and get drunk with other adults is immature.

Immature by James KALL October 6, 2016

Immature 

A word that is used by boring people to describe funny people. It makes them feel smarter and more mature.

Me: *turns on really funny song about ####, #######

Because ring person: You are immature.

Immature by Glva184)2 February 16, 2017

Immature 

A word used by boring people to describe fun people

You are so immature said the no good fun sucking computer nerd

Immature by DoubleMC24 March 30, 2017

Immature 

A 12 year old

You are so immature

Immature by poootato July 13, 2017

Immature 

Stonk's Humor

My humor is the definition of immature, if you haven't noticed.

Immature by GameguySD July 7, 2017

immature 

to go off on your friend because you assumed they blocked you on instagram

talking trash about people behind their back

making fun of people's appearance

did u hear what blank said about blank to blank?

omg yeah she’s so immature

immature by lechuga12 July 3, 2018