scrumple
(ˈskrʌmpəl) vb (usually foll by up) to crumple or crush (something, esp a piece of paper) or (esp of a piece of paper) to become crumpled or crushed
[C16: variant of crumple]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014