Rumple
Part of speech: verb
Definition: To make wrinkled.
Wrinkle
Part of speech: noun
Definition: A small furrow, ridge or crease in an otherwise smooth surface.A line or crease in the skin, especially when caused by age or fatigue.A fault, imperfection or bug especially in a new system or product; typically, they will need to be ironed out.
Part of speech: verb
Definition: (transitive) To make wrinkles in; to cause to have wrinkles.(intransitive) To pucker or become uneven or irregular.