Mate. Feed. Kill. Repeat. is the first release by the American band Slipknot. Released independently on October 31, 1996, the album was re-released on July 13 1997 through -ismist Recordings. The album was a limited edition, with only 1000 copies released according to -ismist Recordings, the distributor. The originals are worth anywhere from $500-$800, although an original copy sold on eBay on March 23rd 2007 for $760 and is yet to be sold on Amazon.com for $1,999. Since the success of the band's self-titled album, the record was distributed on the Internet through several file sharing systems. The CDs name is usually shortened to MFKR.

In 2005, the album was supposedly reprinted and available on Amazon.com in limited numbers. This release was actually a bootleg; the album has never been officially re-released. The majority of copies sold on Ebay are pirated versions of the disc so buyers have to be extra careful when purchasing the album. Fakes and real copies can be distinguished between through the website www.matefeedkillrepeat.com.

Notably, the name of the album, and many of the lyrics featured, are direct references to White Wolf's pen-and-paper roleplaying game Werewolf: The Apocalypse.

A petition created by www.mfkr1.com has started to ask Slipknot to re-release the album.