Shit
COMPLETE SHIT: This tune
Have a shit: to defecate
Don't give a shit: not to give a damn
Ain't worth a shit: valueless
Got the shits: diarrhea, regular visits to the toilet
No shit: disbelief, amazement, derision
Shit happens: bad things take place
Up shit creek: in trouble
Shit on :defecate on another, treat with malice
Shit a brick :to be scared
Shithead: a total twat