What does 'Clear' in 'My hands are equipped with defibrillators. Clear.' mean? Below is a part of the transcript from an animated movie "Big Hero 6": (Transcript link: https://www.quotes.net/mquote/978318) (Video link: https://www.youtube.com/watch?v=zp6ciiZpisM) Baymax: [appears behind Hiro] Hiro? Hiro: [screams, then sees who it is] You gave me a heart attack! Baymax: [rubs his hands together] My hands are equipped with defibrillators. [He moves his hands toward Hiro] Clear. Hiro: [alarmed] STOP, STOP, STOP, STOP! It's just an expression! Could you explain the meaning of "Clear" in the second-last line of the above transcript?