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Slang term, means someone needs to change their behavior as they are acting childish.
by RogueUser May 23, 2020
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Aug 10 Word of the Day
Running for exercise and picking up trash you find along the way. It's good for the body, mind, soul, and environment! Started in Sweden but is making its way to the U. S.
It's nice out and the city is filthy. Let's go plogging!
by Another damn hippie. May 09, 2018
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2
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
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3
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 13, 2016
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4
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
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5
That thing you've got a whole lot of to do.
Me: grow up
You: πŸ™„
by LiberalDestroyer007 November 16, 2018
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6
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!"
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