I heard a line in a song consisting of this utterance, and that's how it goes:<br/><br/>"...Already in the red; already got a steady, infrared meant for my head" (Eminem / We as Americans).<br/><br/>I know you may say there are songs containing informal language or unusual sentences.<br/><br/>However, what's the meaning of this utterance according to the context I've provided?<br/><br/>Regards