Top Definition
1. A Spell in D&D used for gassing enemies with poison, also good for soaking the ground to rid the earth of underground monsters, such as giant ants.

2. A 3 peice indie rock band from Belleville, Il, at www.cloudkill.com

3. A really, really... very probably the worst fart ever...
1. The Mage Casts the cloudkill at the herd of elk...

2. Wow, that is the best band i've ever freaking seen.

3. Antrax eating an ultra nova
by David Aye May 20, 2005

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