Grow up

Slang term, means someone needs to change their behavior as they are acting childish.

you are complaining too much 'grow up'.

by RogueUser May 23, 2020

Grow up

Something you would say to most users in Urban Dictionary

Most definitions posted by users on UD are dirty, sexy, pervy. Grow up

by Suklaa November 10, 2019

Grow up

A phrase parents use against there children, who were a lot more fabulous and fun than they were

*Carlie comes home 2 minutes past curfew*
-"How unacceptable, grow up"

by RihannaNavy23 May 14, 2016

Grow up

That thing you've got a whole lot of to do.

Me: grow up
You: 🙄

by LiberalDestroyer007 November 16, 2018

grow up

Grow up is phrase said to people who are acting like a bit of a chump and need to act their bloomin' age.

"Ha, ha! Look at me - "

"Grow up! You juvenile bastard!"

by NEBILÉ, ACT YA BLOODY AGE!!!!! October 31, 2009

grow up

Definition : marry the blonde you love

I need to grow up

by Des monald November 23, 2015

Grow up

Something somebody doesn't have to do if they have reached a certain age and haven't done so already.

If somebody is 40 years old and still a child, that's their business. They don't have to grow up if they are still alive and still a child at the same time.

by Solid Mantis April 27, 2021