crawfish out vs back out

crawfish out and back out both are verbs.

Word	Noun	Adjective	Verb	Adverb
crawfish out	No	No	Yes	No
back out	No	No	Yes	No

As verbs, crawfish out and back out are synonyms defined as:

crawfish out and back out: make a retreat from an earlier commitment or activity

Other synonyms of crawfish out include back away, crawfish, pull back, pull in one's horns, retreat, withdraw.

crawfish out (verb)	back out (verb)
make a retreat from an earlier commitment or activity	make a retreat from an earlier commitment or activity
	move out of a space backwards