come off vs chop off

come off and chop off both are verbs.

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

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

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

come off (verb)	chop 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)