ruck up vs crinkle

ruck up is not a noun while crinkle is a noun.

Word	Noun	Adjective	Verb	Adverb
ruck up	No	No	Yes	No
crinkle	Yes	No	Yes	No

As verbs, crinkle is a hypernym of ruck up; that is, crinkle is a word with a broader meaning than ruck up:

ruck up: become wrinkled or drawn together
crinkle: make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic

Other hypernyms of ruck up include crease, crisp, ruckle, scrunch, scrunch up, wrinkle.

ruck up (noun)	crinkle (noun)
	a slight depression or fold in the smoothness of a surface

ruck up (verb)	crinkle (verb)
become wrinkled or drawn together	become wrinkled or crumpled or creased
	make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic