flag-waving noun2 •Highly vocal and visible support given to a cause.I soon discovered that nobody seemed to want Anzacs in spite of their flag-waving and yapping before we left[.] — 1933 •(old-fashioned) Undesirable horizontal skewing of frames in an analog video signal.They eliminate picture rolls, tearing, flag waving, hue shift, skew error or color streaking. — 1973
