A disparaging name for an individual who abuses Robitussin products, obtaining a delirious or weezy, def.7 feeling from the cough and cold relief medicine alone or in conjunction with other controlled substances. Children and teens looking for a cheap kick may be tempted to steal from a family medicine cabinet or retail store shelf to acquire a Robitussin or similar product, usually a cough syrup in liquid form. By this stage in the addiction, they may be called a "Robo Head" by their distanced peers. Massive quantities of Red Bull energy drink has become a more acceptable buzz with underage drinkers due to its hypertensive effects. See Paint Sniffer for variation of abuse.
"I'm not walking home from school with Kyle any more. He's a Robo Head!"