come off vs lop off

come off and lop off both are verbs.

Word	Noun	Adjective	Verb	Adverb
come off	No	No	Yes	No
lop off	No	No	Yes	No

As verbs, lop off is a hyponym of come off; that is, lop off is a word with a more specific, narrower meaning than come off:

Other hyponyms of come off include blow off, chop off, cut off, unsolder, fall off.

come off (verb)	lop off (verb)
happen in a particular manner	remove by or as if by cutting
come to be detached
break off (a piece from a whole)