You can think of crinkle as the moment something thin stops lying flat. A sweet wrapper, a sheet of baking paper, the skin at the corner of an eye — all of it gathers into many small, shallow folds at once, running in every direction. Nothing tears, and nothing is into a ball; the surface keeps its shape and simply goes from smooth to finely lined. Those little folds can be seen, felt, and, when the material moves, even heard.
From the word’s history
Wiktionary traces crinkle to Middle English crenclen and Old English crincan 'to yield, to bend', with the -le ending that marks a small action done again and again — a picture of bending over and over, which is exactly what a field of tiny folds looks like. It is related to cringe.
Wiktionary 把 crinkle 追到中古英文 crenclen 和古英文 crincan（屈服、彎折），字尾 -le 表示「一再重複的小動作」。一再彎折，正好就是一整片細摺的樣子。它和 cringe 同源。
Wiktionary entry for crinkle, supplied in this evidence packet (kaikki:3f6f69a190036ae4:1183770038:6527)
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