1) When a person takes an abnormally long time to accomplish a certain task.

2) One who sucks at life.

means "often"

Mostly used hand in hand with anything that has positive quality.

Term used in prison amongst inmates meaning they're serving a life sentence.

1. Yes
2. Of course

Restaurant slang (kitchen). A request by a line cook to the expeditor (controller of the orders) about the total amount of orders for specific items.

gang slang used to say "Okay", but in a sense that they will get it done no matter what.

really good, yes, yes sir, ok, definitely, quite