What is a slang word for preschool kids?

There isn't one single universally accepted slang term for preschool kids. The best choice depends heavily on context and tone. However, some possibilities include:

* Littles: This is a fairly common and generally neutral option.

* Wee ones: Similar to "littles," this is gentle and descriptive.

* Tots: A bit more informal.

* Tykes: Similar to "tots," but possibly slightly more playful or even slightly condescending depending on the context.

The best choice will depend on your audience and the overall feel you're going for. Avoid slang terms that might be considered disrespectful or demeaning.