Thwack has 4 different meanings across 2 categories:
Noun
· Verb
Noun
1
a hard blow with a flat object
2
The act of thwacking; a strike or blow, especially with a flat implement.
Verb
1
deliver a hard blow to
"The teacher smacked the student who had misbehaved"
2
To hit with a flat implement.
Broader Terms (hypernyms)