have to do with

[have to do with] {v. phr.} 1. To be about; be on the subject of orconnected with.

The book has to do with airplanes.

2. To know orbe a friend of; work or have business with. - Usually used in negativesentence.

Tom said he didn't want to have anything to do with thenew boy.

I had nothing to do with the party; I was home thatnight.