AB stands for "at bats" which is how many times a batter gets to go up to the plate and hit the Baseball. Bf is "batters faced", which is the number of batters pitched to (pitching stats)
Usually AB is an offensive stat which stands for At Bat, meaning who is batting at the current moment. BF usually stands for Batters Faced, used as a pitching stat next to how many batters that pitcher struck out (Batters faced is not used in computing a pitcher's ERA, or Earned Run Average. See http://en.wikipedia.org/wiki/Earned_run_average)
Baseball America may have formed a stat for this category.
If it is a pitching stat then it is the average runs a pitcher allows in nine innings. If it is a hitting stat it is an average of how many runs a team scores per game.
If you are referring to media reports about football, it stands for AMERICAN PRESS
Wins, losses, IP, WHIP, Saves and Strikeouts are all pitching stats.
There is no stat concerning OWAR in baseball. You can check the Baseball Almanac for assurance.
Corner infielder
'Pitching a no no' is baseball slang for pitching a no-hitter.
There is no such stat. If you're seeing it on a stat sheet, it may refer to some kind of "total."
2B.
It is how many base hits the player has hit.
In Twilight, Alice was pitching in the Cullen Baseball Game