Sentence used for when someone proposes an alternate reality but that already exists in the real word
Person 1: I wish Britain spoke a romance language!
Person 2: Romans in Britain? What a childish fantasy.
Person 2: Romans in Britain? What a childish fantasy.
by a brazilian monarchist March 4, 2023

The person reading it is all that wondering maybe they’ll acc move on from this whole problem they caused
by IVXXXANANA November 4, 2023

Holding in all of the aggravating, stupid, child-like statements inside of your head until you feel it is the right time to let them out.
Mature person: “So tell me why you chose to be extra aggravating today”
Childish person: “Because you are feeling better and now that I know that, I can return to my childish ways”
Mature person: “Oh, i’m not surprised”
Childish person: “Because you are feeling better and now that I know that, I can return to my childish ways”
Mature person: “Oh, i’m not surprised”
by Brynn33 July 29, 2021

by NotYourGirlNotYourBusiness November 18, 2019

Someone who acts like an infant and/or is immature to a group of other people and even possibly yourself.
person1)did you dress up for Halloween this year? i dressed up as a chipmunk
person2)ew no, thats so childish Brenda
person1)well...now i know how you really feel karen..
person2)ew no, thats so childish Brenda
person1)well...now i know how you really feel karen..
by AGravePerson April 22, 2020

thundercracker's behaviour.
eg.1
Dave: I'm good at FAS2
Thundercracker: You troll
eg.2
Bravo: Uploadin' FAS2 on Moddb folks
Thundercracker: Takin' it down m9
eg.3
Ulisse: He's so childish
Entire world population and a few aliens: Ye
Dave: I'm good at FAS2
Thundercracker: You troll
eg.2
Bravo: Uploadin' FAS2 on Moddb folks
Thundercracker: Takin' it down m9
eg.3
Ulisse: He's so childish
Entire world population and a few aliens: Ye
by kansas54 April 20, 2017
