Of very poor quality; inferior or substandard. The movie was so shitty that I couldn't sit through the whole thing.
Unpleasant or unfair; causing dissatisfaction or resentment. I had a shitty day at work because everything went wrong.
Feeling unwell or in poor health. I've been feeling shitty all week with this cold.
Covered with or containing feces; soiled with excrement. He threw the shitty diaper straight into the trash.