(statistics) The difference between the expectation of the sample estimator and the true population value, which reduces the representativeness of the estimator by systematically distorting it.
(sports) In the game of crown green bowls: a weight added to one side of a bowl so that as it rolls, it will follow a curved rather than a straight path; the oblique line followed by such a bowl; the lopsided shape or structure of such a bowl. [from 1560s]
(fandom slang) A person's favourite member of a K-popband.