Read the dictionary definition of posterior. All definitions for this word.
1. a tooth situated at the back of the mouth
2. the fleshy part of the human body that you sit on
1. he deserves a good kick in the butt
2. are you going to sit on your fanny and do nothing?
3. coming at a subsequent time or stage
1. without ulterior argument
2. the mood posterior to
4. located at or near or behind a part or near the end of a structure