lug vs clog up

lug is a noun but clog up is not a noun.

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

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

Other hypernyms of lug include back up, choke, choke off, clog, congest, crap up, foul.

lug (noun)	clog up (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

lug (verb)	clog up (verb)
carry with difficulty	become or cause to become obstructed
obstruct