The children are playing with a spinning top in the alley.
Tips
history
Rarely written; it appears mostly doubled as 尜尜 for the old children's toy, and in dialect it stands in for 嘎. It is a self-explaining ideograph: small–big–small, picturing the spindle shape.
memory
Read the stack top to bottom: 小 over 大 over 小 — narrow, wide, narrow: the exact silhouette of the double-pointed spinning toy.