choke up vs lug

choke up is not a noun while lug is a noun.

Word	Noun	Adjective	Verb	Adverb
choke up	No	No	Yes	No
lug	Yes	No	Yes	No

As verbs, choke up and lug are synonyms defined as:

Other synonyms of choke up include block, stuff.

choke up (noun)	lug (noun)
	marine worms having a row of tufted gills along each side of the back; often used for fishing bait
	a projecting piece that is used to lift or support or turn something
	a sail with four corners that is hoisted from a yard that is oblique to the mast

choke up (verb)	lug (verb)
obstruct	carry with difficulty
	obstruct