crease(redirected from creaseproof)
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crease something up
to get creases or folds into something that is supposed to be flat; to wrinkle one's clothing. (Very similar to messed up.) You will crease your jacket up if you don't sit up straight. I was sitting so long that I creased up my pants.
mod. exhausted. What a day. I am totally creased.
See also: crease