1. a state of extreme tiredness caused by performing fellatio until the point of exhaustion.
2. a state of extreme tiredness caused by eating too much sausage, bratwurst, hot dogs, or other phallicly-shaped meats.
"That girl sucked my dick for so long she's passed out on the bed in a sausage coma."
"Man, I just ate 8 brats. I'm going into a sausage coma."