Dust (one's) pants verb phrase
To hit a child on their bottom with your open hand, as a punishment
My mom will dust my pants, if she hears me swearing.
Jenny's dad was always very strict with her. He dusted her pants when she did not obey him.
A slap on the side of one's head, usually as a punishment
1. To attack or beat someone badly with punches and other strikes, so that they suffer serious harm
2. To convincingly defeat one in a particular competition
To slap two things together to make a noise.
The verb "dust" should be conjugated according to its tense.
The idiom is used to say that someone is stupid, unthinking, or inattentive.
When I tell them anything, they look at me like the lights are on, but nobody's home.