What does it mean to pull the legs of the spider?

When A is making fun of B in front of everyone, and C, who's B's friend says "Hey, go pull the legs off a spider.", to A, C is telling A to find something better to do with their time than to make fun and laugh at C. B is the one being laughed at by A. C, in saying this to A, is doing several things at the same time. read more

You say that to someone who is making fun of another person and you step in and say, “hey man, go pull the legs off a spider”. You kind of neutralize his sarcastic humor by urging him to do something more “useful”. read more

When A is making fun of B in front of everyone, and C, who's B's friend says "Hey, go pull the legs off a spider.", to A, C is telling A to find something better to do with their time than to make fun and laugh at C. B is the one being laughed at by A. C, in saying this to A, is doing several things at the same time. read more