Circa 1990, there was a television commercial for a breakfast cereal or something. An announcer-voiced guy was like “Admit it, you doctored it up!” to the lady on the screen, and eventually she was like “Okay, okay, I doctored it up!”
And I found it so strange because I’d never heard that phrase before in my life, and also it seemed weirdly antagonistic, although maybe it wouldn’t have if I hadn’t had to guess from contaxt what they meant.