A bad situation. Often involving room-mates, car problems, girl problems, etc. Sometimes related to bowel problems.
Archaic: The need to stop for gas whilst traveling long distances.
Origin: Big Ed's Gas Farm in the television show Twin Peaks.
"What's your big ed?"
"I got me a bad big ed. I got bad hams, Helvis is in town, and that chicken sandwich from Wendy's ain't sittin' too well."
"Wow. That's bad. . .real bad."