crackverb
knucklenoun
She smiled and cracked her knuckles.
He cracked his knuckles as he waited to be called to the stage.
Wayne rubbed his hands together, cracking his knuckles as he tried to control his anger.
He's always cracking his knuckles.
SMART Vocabulary: related words and phrases
Sounds made by objects, movement or impact
bang around
bleep
boop
choo-choo
chuff
clap along
click away
crunch
honk
plop
resonance
rumble
spit
squeak
swoosh
thrum
thunk
tick-tock
ticking
tinkly