crashing vs blinking

crashing is not a noun while blinking is a noun.

Word	Noun	Adjective	Verb	Adverb
crashing	No	Yes	No	No
blinking	Yes	Yes	No	No

As adjectives, crashing and blinking are synonyms defined as:

Other synonyms of crashing include bally, bloody, blooming, flaming, fucking.

crashing (noun)	blinking (noun)
	a reflex that closes and opens the eyes rapidly

crashing (adjective)	blinking (adjective)
informal intensifiers	closing the eyes intermittently and rapidly
	informal intensifiers