flopover

noun3

1. •
   The action of flopping over; (countable) an instance of this; also, a thing which flops over.

   • I prefer 'Mt. Fuji' [a variety of phlox], a good strong white that resists flopover from summer storms and blends well with almost all late summer flowers. — 1994
2. •
   (figurative) A change from one position to another.

   • Now in the light of this history we see this sudden flopover in the Maritime Law Association dominated by the shipowners and their lawyers. — 1963
3. •
   A form of television signal distortion where the displayed image appears to scroll vertically rather than remain still; (countable) an instance of this.

   • Automatic Interference Guard gives protection against picture distortion. Now you have mirror-clear TV without picture flopover, jitter, tear! — 1956