Same thought. Went through Hewlett Packard, Harry Potter, Hit Points, High Powered/Pressure, High Priest, Horsepower, Highway Patrol and Hydrogen Peroxide before giving up and just randomly naming food types.
I believe it may be similar to what Americans call chop sauce. Though I’ve never had chop sauce, so I can’t confirm. It has the consistency of ketchup, but contains, I think, vinegar and spices.