There are three different spots and all of them have the same main idea that is playing with “sound”.

In the first one, a person is chopping scallions really fast and repeats the word “chives” in the same rhythm while doing it. This goes on until the end, when instead of saying scallion she yells out “thumb”, letting us know she cut herself.

In the second one, a person is sawing wood really fast and repeats the word “mahogany” in the same rhythm she’s sawing. This goes on until the end when instead of saying mahogany he yells out “pinkie”, letting us know he cut himself.

In the last one, a person cuts silk really fast and repeats the word “silk” in the same rhythm while cutting. This goes on until the end, when instead of saying fabric he yells out “finger”, letting us know he cut himself.