Pull the legs off a spider means: A makes fun of B before everyone and C, B’s friend, says, “Hey, pull the legs off of a spider.” C tells A that C wants A to have fun with C. A is laughing at B. C is saying it to A in a variety of ways. Supporting B. It is clear that A’s laughter was completely inappropriate. A person like A, who enjoys ruthlessly pulling legs off spiders’ legs, isn’t just a bully; he or she acts as if a child. (in Community Dictionary, added by Eugenia Méndez)
