Pearls Before Swine by Stephan Pastis for August 22, 2013
Transcript:
Pig: Our new biker gang neighbor is so nice. Rat: The guy with the loud motorcycle? Pig: Yeah. I told him you were mad about all the noise and he offered go come over here and help with some household chores. Rat: What'd he offer to do? Pig: Clean our clocks. There he is now. I'll get him some Windex.
Would like to know how “clean one’s clock” means “pulverize someone.”