Designed to prevent lock picking.

(colloquial or dialectal, nonstandard) simple past tense of fling

(geometry) a theorem stating that if a set of points P_i lying on a line is isometrically mapped to points P_i' on a different line, then the midpoints of the segments P_iP_i' also lie on a line.

(astronomy) A very tiny black hole, small enough to be influenced by quantum effects.