They call it Eskimo pi. A sheet of paper is an ink-lined plane. An inclined plane is a slope up. A slow pup is a lazy dog. A geometer went to the beach to catch the rays and became a TanGent.
Life is complex.
It has real and imaginary components. A famous mathematician was to give a keynote speech at a conference. When he arrived, though, he spoke on a much more prosaic topic. Afterwards the conference organizers asked why he said he'd talk about the theorem and then didn't. He replied this was his standard practice, just in case he was killed on the way to the conference.