The kids are playing with a wooden spinning top in the yard.
Tips
usage
The second-tone gá is a louder, drawn-out cackle (a goose, a forced laugh) and also writes a children's toy, a short stick whittled to a point at each end, the same thing as 尜. For the brief, sharp everyday sound use the gā reading.
Three-stroke mouth radical on the left, the indexing radical. 嘎 is onomatopoeia for a sharp creak or squawk: a duck's quack, a door's creak, a sudden snap. The mouth radical signals sound-from-the-body, as in 哈, 哎, 啦.
Right side 戛 supplies the sound, jiá shifting to gā through a regular j/g alternation in colloquial readings. 戛 originally named a small halberd and by extension the tap of metal on metal, so the phonetic also brings a sonic echo that fits the onomatopoeia.
