"Gimme Some Slack" was first released on Panorama, but in 1981, the song was released as the third single from said album. However, the song failed to chart in any countries, making it one of the band's least successful singles. The song has since appeared on on the compilation album Just What I Needed: The Cars Anthology.
In his review of Panorama, AllMusic reviewer Greg Prato stated "'Gimme Some Slack' proved to be a fierce rocker." Prato also said, in his review of Just What I Needed: The Cars Anthology, that it was "previously released album tracks [on the album]" that were "highlights." In the Just What I Needed: The Cars Anthology liner notes, Brett Milano said, "Rockers like 'Getting Through' and 'Gimme Some Slack' had a heavier sound than before [Panorama]."
The B-side of the song, "Don't Go to Pieces", features Benjamin Orr on lead vocals. "Don't Go to Pieces" was first released as the B-side to "Don't Tell Me No", the single released before "Gimme Some Slack".