"Geek Stink Breath" is a song by American punk rock band Green Day. It was released as the first single from their fourth album, Insomniac. The song along with "Stuck With Me" first appeared on the live EP Foot in Mouth that was only released in Japan. The song wrote in 1994 before release of Insomniac, the lyrics tell of the effects of methamphetamine on the human body. (The word "geek" is slang for "methamphetamine".)
"Geek Stink Breath" debuted live on December 3, 1994 during Green Day's first performance on Saturday Night Live. The word "shit" in the line "wish in one hand and shit in the other and see which one gets filled first" was left uncensored since the show's production team could not understand the lyrics to the new song (closed caption typed it as "unintelligible lyrics") and were not aware that the band had sworn on TV. The song was later recorded and released on the band's fourth studio album Insomniac (1995), and as the album's lead-off single.
The lyrics tell of the singer leading a "path of self-destruction" through the use of methamphetamine, and the effects of this drug on his body. The lyrics were inspired by Armstrong's own experiences, as well as the people around him that he saw lose control of their lives because of their addictions. Featuring a hard rocking three chord riff, the song pays homage to the band's 1970s punk influences, including the Ramones and the Sex Pistols. The song ended up being a moderate radio hit.
The video shows the band playing the song in a basement, as well as graphic footage of one of the band's friends having a tooth pulled, which was intended to only be shown during late night hours on MTV. This footage is relevant to the song, as it features the lyrics: "and it's rotting out my teeth". (Oral problems are associated with meth use, but are actually related to poor hygiene, exacerbated by dry mouth, both of which are associated with illicit use of some drugs, rather than being directly related to the effect of smoking or otherwise ingesting methamphetamine.) The video was directed by Mark Kohr. An edited version of the music video is shown internationally.