(one) is not going to bite (someone)

(one) is not going to bite (someone)

Someone has no reason to be afraid of one; someone should not be shy about approaching or talking to one. Don't worry, child, I'm not going to bite you. I just wanted to give you a message to pass along to your father. This is your Uncle Jack, son. Well, go on and shake his hand, he's not going to bite.

See also: bite, going, not