1. Very great amount of something, or something with large scale or intensity;
2. One of Trump’s twenty favorite words, along with: amazing, bad, dangerous, lightweight, loser, moron, out of control, politically correct, rigged, small, smart, stupid, terrific, they, tough, we, weak, win/winning, zero.
3. Obvious lie when used by Trump, and can be taken to mean the opposite of its typical definition.