Very good (contrary to the dictionary definitions of "full of or involving woe" and "lamentably bad or serious"). Also used as an adverb before adjectives (but not as "woefully") to mean "very".
To say that someone "can't drink fog" is to say they're a lightweight at drinking.
It's history comes from many a Kerry man who has emerged from a pub after many pints, is suddenly hit by the air and immediately feels more drunk
Used to describe a Fifa player who passes the ball to another player on the other side of the goal and taps the ball in,fooling the keeper and pissing off the other guy.