"Geek Stink Breath" is a song by American rock band Green Day.

The song, along with "Stuck with Me", appeared on the live EP Foot in Mouth that was only released in Japan.

Written in 1994, "Geek Stink Breath" was played along with "Stuart and the Ave." during a soundcheck at Chicago in November 1994 (the video can be found on the video game Green Day: Rock Band) and the song debuted live on December 3, 1994, during Green Day's first performance on Saturday Night Live.

[4] 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 video includes distorted, low-resolution footage of the band playing the song in a basement, intercut with graphic footage of one of the band's friends having a tooth pulled by a dentist, which was intended to only be shown during late night hours on MTV.