To move about on the elbows, dragging the back half of the body, in almost a froglike manner. This is done by both elbows at the same time, and follows with the knees a second later. Example: The tomboyish girl decided to scunch across the living room carpet floor, thus obtaining rug burns on both her knees and elbows.
SCUNCH
Meaning of SCUNCH in English
Slang English vocab. Английский сленговый словарь. 2012