crap up vs choke off

crap up and choke off both are verbs.

Word	Noun	Adjective	Verb	Adverb
crap up	No	No	Yes	No
choke off	No	No	Yes	No

As verbs, crap up and choke off are synonyms defined as:

Other synonyms of crap up include back up, choke, clog, clog up, congest, foul.

crap up (verb)	choke off (verb)
become or cause to become obstructed	suppress
	become or cause to become obstructed