Watch the stroke order, then trace it yourself.

ding-dong (sound of a doorbell or water)
sound of something falling into water
sound of knocking or drumming
sound of drums and cymbals
Someone is knocking on the door with a thumping sound.
The doorbell went ding-dong.
The big stone fell into the water with a splash.
Explore characters by relationship
Characters pronounced "dong".
Characters with radical "口".