O’Donnell needled Trump by revisiting long-running jabs about the size of the president’s hands.

Trump’s fingers first became a punch line decades ago with journalist Graydon Carter’s description of the then-businessman as a “short-fingered vulgarian,” O’Donnell noted.

The topic infamously resurfaced during the 2016 presidential campaign when Trump sparred with then-rival candidate Marco Rubio over his hands in a back-and-forth that quickly devolved into crude jabs about penis size.

By flipping off and mouthing “fuck you” at Ford autoworker TJ Sabula — after Sabula called him a “pedophile protector” during a factory tour in Detroit — Trump had only dragged the issue of his “tiny” fingers back into the spotlight, O’Donnell suggested.