Through (something) like a hot knife through butter American British phrase informal
Used to say of something that can be done or happens quickly and effortlessly
Having an great command of English enables me to get through this test like a hot knife through butter.
The water jet cutter is one of the most powerful machines in mankind's history, as it can cut through steel like a hot knife through butter with compressed water beams.
Very fast.
Very rapidly and eagerly
To win a competition easily
Very quickly; in a short period of time
Used to say that something happens very quickly.