23 skidoo /ˌtwɛnti ˌθɹiː skɪˈduː/ phrase3 •(US, no longer used) To leave, particularly quickly or at an advantageous time.... the 'varsity quarter, who at the close of each meeting discards the conventional "I move we adjourn, sir,'" for the more modern "23, skidoo." — 1908 •(US, no longer used) To be forced to leave quickly. •(US, no longer used) A nonsense word.
