kid stuff

基本解释

It's that greasy kid stuff.
小孩子用的东西。
Margo: Oh, now, Bill. You know how much I do. But over a phone? Now, really. That's kid stuff.
玛歌：比尔，你知道我有多爱你。但是在电话里面？那是小孩子玩的把戏。
vip.book.sina.com.cn
All right, I always have to think hard when I do this because when we deal with bullets, that is no kid stuff and I... as I said I have really no experience firing guns.
每次做这个实验的时候,我都左右为难,因为要动真枪，这可不是过家家,此外，我…,对射击真不在行。

Lin was a blogger on Xanga, as noted by Reddit, when he was in high school, but that was kid stuff (and he has since made the account private).
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According to Chua, who expounded on her ideas in a popular book, Battle Hymn of the Tiger Mother, the typical Asian mom prioritizes academics and musical accomplishment (in classical piano and violin only) over typical fun kid stuff like sleepovers and playdates.
FORBES: Tiger Moms Don't Raise Superior Kids, Says New Study
All their licensed kid stuff.
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