An asshole of immense proportions; someone who posts paranoid, offtopic and psychotic comments on blogs throughout the internet; ie, Dean Berry, Real American.
Dean Berry, Real American is a fart cow.
by C Mathers December 25, 2005
A cow whose gastrointestinal eruptions are more frequent than normal.
"He became a fartcow upon consumption of the burrito of doom"
by Fartcow June 03, 2003