bump heads with

Like this video? Subscribe to our free daily email and get a new idiom video every day!

bump heads with

To clash with another person on a particular issue. Monica and I are always bumping heads with each other about how to go about these reports because she wants to start writing, while I think we should research first. I just know I'm going to have to bump heads with Ted again about this budget—we always want to cut different things.
See also: bump, head