kid stuff

American  

noun

Informal.

1. something appropriate only for children.

2. something very easy or simple.

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kid stuff Idioms  

1. Something very easy or uncomplicated, as in That new computer program is kid stuff. This usage alludes to something suitable for young children, or “kids.” [c. 1920]

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Etymology

Origin of kid stuff

An Americanism dating back to 1925–30

Example Sentences

She loves cabinets with baskets to corral the kid stuff and says, “Every family should have a storage ottoman,” or at least a low, scratch-proof coffee table with rounded edges.

From Seattle Times • Jan. 13, 2023

As a child, I thought the older guys were trying to get me to toughen up and not watch cartoons because that was kid stuff.

From Salon • Aug. 5, 2022

What both of your children are doing is normal kid stuff.

From Washington Post • Jul. 20, 2022

Since coming out, she has begun to speak more directly to people her age, who tended to dismiss her as kid stuff.

From New York Times • Sep. 19, 2021

Yep, not the kid stuff I used to pretend with, but seriously expensive adult woman makeup!

From "Blended" by Sharon M. Draper