Answer:
When someone uses this acronym, you know you've got to pick up the pace
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
Can be achieved in a car or as a position during conflict
What is the middle of water but is not an island?
What heavy seven letter word can you take two away from and be left with eight?
When is it bad luck to see a black cat?