The album cover has 3 red alarm clocks, each set at 6:00, representing 666. "I used to set my alarm clock when I was a bike messenger to 6 o'clock in the morning, and when the alarm clock would go off, the first word out of my mouth was always 'Goddamnit!'", says Matt Skiba.
As of 2008, Goddamnit has sold 94,000 copies in the United States, according to Nielsen SoundScan. Mike DaRonco of Allmusic called Goddamnit "hands down the perfect listening in the wake of a broken heart" and remarked that "It's rare that a band such as Alkaline Trio can make love songs appealing without being labeled as 'wimpy' or 'generic', and Goddamnit is the record to erase those labels."