1. go away; leave; stop bothering me

1. When he asked for her help, she told him to go fly a kite.

2. Bill: Dad, can I have ten bucks? Father: Go climb a tree!

3. Fred: Stop pestering me, John. Go jump in the lake! John: What did I do?

4. Bob: Well, Bill, don’t you owe me some money? Bill: Go fly a kite!