1. (US, orig. teen) an idiot, a fool, someone who has nothing but air, and no brains, in their head.
|Daily Times-News (Burlington, NC) 17 Aug. 9A/7: We are not all air-heads [OED].|
|Campus Sl. Apr. 1: airhead – a stupid person, usually applied to females.|
|Totally True Diaries of an Eighties Roller Queen [Internet] 23 Mar. Today I was talking to Rob and Raul phoned him and asked him why I dropped him. He’s such an air head. What a dork.|
|Guardian Media 28 June 8: You do realise she is a total airhead.|
|(ed.) UNC-CH Campus Sl. Fall .|
2. (US campus) an intelligent person.
|Da Bomb Summer Supplement 1: Airhead [...] Smart guy.|
3. (drugs) a marijuana user.
|ONDCP Street Terms 1: Airhead — Marijuana user.|