squeg
squeg
(skwɛɡ)vb (intr) , squegs, squegging or squegged
to oscillate in an irregular way between different frequencies
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014