Dogshit - very poor quality.
Bullshit - not true.
Horseshit - nonsense.
Apeshit - rambunctious.
Batshit - insane.
Chickenshit - cowards.
Ratshit - poor quality.
No shit - obviously.
Holy shit - mind-blowing/unbelievable.
Hot shit - very good.
Dipshit - a complete idiot.
Tuff shit - take it or leave it.
Jack shit - nothing.
The shit - perfection.