There are at least three bands with this name:

1. Man's Ruin was formed in 1995 as an all girl punk / Oi! band from Atlanta, Georgia, comprising Rhonda Riot (vocals), Jennifer Noah (guitar), Lindsay Newlin (bass) and Kelly Hall (drums). They released a single on Gmm Records - Cider Woman in 1996. They released a CD on Gmm Records called Whoyoucallin' Cracker in 1998. They were on compilations - Caught in the Cyclone - Skins' n' Pins and The East Coast of Oi!. They release a second CD on Helen of Oi! Records in 2000 called Gossip, Rumors & Lies with Angry Ian on drums.

Read more about Man's Ruin on Last.fm.