29
A word women use to describe male behavoir which they cannot comprehend.
Ugly Becky: "OMG! Darrel cheated on me! I don't get it!"
Plain Jane: "Just forget about him Becky, he's just immature."
by ThEmperor November 18, 2008
Mug icon

Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

Buy the plush
30
Used by a person who can not have fun.
"Gosh Sepand you are so immature"
Mug icon

Golden Shower Plush

He's warmer than you think.

Buy the plush
31
The adjective boring people use to describe fun people.
JK: "Nip slip!"
Maren: "You're so immature"
JK: "You're so boring"
Maren: "I know"
by jmfk November 18, 2014
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt
32
Someone who maybe be irresponsible unorganized and does little kid things but all in all is a fun person!
A: MUD FIGHT!!
B: Your so immature.
by ieezsooperawzumninja February 14, 2010
Mug icon

Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

Buy the plush
33
A group of people who say the word "eww" too much.
"Eww, why are we so immature eww"
Selena
Destiny
Rachel
+ Friends
by <3cum<3 January 07, 2008
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt
34
1. The term used by girls ranging from 8th-10th grade to describe guys in their grade as an excuse for becoming sluts to college guys in a higher grade.

2. Used to describe adolescent people who don't drink alcahol, take recreational drugs, drink coffee, sneak out of their house at 1 am, have sex etc...

1.
Kate: The guys in my grade are so immature, which is why I am going out with this new guy.

James: Do I know him, what's his name?

Kate: I don't know but he is 21, has a car and and can buy me and my friends beer

2. Brandon doesn't drink, therefore he is extremely immature
by Jason_Cali28 December 08, 2006
Mug icon

Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

Buy the plush
35
Ashley and Katie are being immature by having fun .
by ImmatureGurl August 12, 2012
Mug icon

Golden Shower Plush

He's warmer than you think.

Buy the plush