A sudden flash of genius, when one is trying to solve a complicated problem or frustrating issue. Inspired by the show House M.D. Typically near the end of the episode; Dr. House, in deep thought or from seeing a clue around him, finally finds the right diagnosis.
After accidentally spilling a bottle of black ink on my carpet, I tried to get it off with an old sponge before it dried. While panicking to clean it, I had a House moment. I ran to my bathroom, grabbed a bottle of shampoo, poured it on the spill, and scrubbed it spotless.