hang out = spend time with friends; do nothing with other people.

Jason and Sandy like to hang out with each other.

Yesterday they hung out at a record store all afternoon.

 hang up on = to end a phone conversation quickly, usually when angry or impatient.

She got tired of being put on hold, so she hung up on the person who was helping her.

 have to do with = to have some connection; to be related.

When it was discovered that the president of the bank had something to do with the theft of some money, everyone was shocked.

 have something / nothing against = to have bad feelings about someone or something.

I have nothing against people who smoke as long as they don’t do it too close to me.

 hold on = wait for a short time; stop

"Can you hold on a minute. I have another call coming through."

Also…hold off = wait for a longer period time.

We thought about getting a new car, but because the economy is so bad, we decided to hold off for now.

 hold up = to be in good condition after a long period of time or physical challenge; to be okay after a sickness or a period of struggle.

After two hours of skiing, they’re holding up pretty well.