or, more properly, foecal beef.
n. The fetid substance within the colon that is the result of the digestion, or partial digestion, of a large slab of beef.
"Dude, I ate the biggest fucking steak of my life last night, and now my insides are exploding with fecal beef."
"Honey, what did you have for dinner at that convention last night? The toilet is clogged with foecal beef."