Kids' stuff disapproving noun phrase informal
Something that is very simple and requires little effort
Now I've got used to the job, and everything seems to be kids' stuff.
What do you mean by you can't do it? It's just like kids' stuff! Everyone can do it.
Something that is suitable for children only
Kids' stuff such as manga or cartoons doesn't seem to have much interest to Lawrence anymore.
Something easy or pleasant to do, especially by comparison to something
A legal matter that is very easy to solve
Especially easy
A simple, quick or evasive answer
Used to indicate that something is easy to achieve, it is also easy to lose
This phrase first appeared around 1925 to 1930. At that time, the phrase was used to refer to vaudeville acts or advertisements featuring children, and to child-oriented features in newspapers.
It was often said by a photographer when he would like small children to look at the camera and smile before he took a photo.
When the photographer said “watch the birdie”, all of us looked at the camera and smiled.