Mendoza line

Etymology
After shortstop, whose lifetime batting average is taken to define the threshold of minimally competent hitting.

Noun

 * 1)  A .200 batting average, which is around the minimum batting average a player with strong defensive skills can have and still stay in the major leagues. Named for Mario Mendoza.
 * His recent slump has put him perilously close to the Mendoza line; he may be headed to AAA soon.
 * 1) The line dividing acceptable mediocrity from unacceptable mediocrity
 * 2) * I don’t think you could find any other figure in politics who has run this far below the Mendoza line and still managed to get taken seriously.
 * 3) * A sub-$2,000 per theater average... is the Mendoza Line of box office numbers.
 * 4) * Republican pollster Neil Newhouse... argues that these numbers have crossed below the political "Mendoza line"...