Also found in: Acronyms.
An abbreviation of "which was what was wanted," used as a slightly humorous ending to a mathematical proof. My professor in college said she always hated putting QED at the end of proofs because it sounded too pretentious. She always put WWWWW at the end of hers instead. I cheekily put WWWWW at the end of the proof, expecting it to rile up the teacher. So I was surprised when he wrote "ha ha" next to it and gave me an extra point.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.