Phrasal verbs are multi-word verbs that, like single-word verbs, convey action of the body or mind or occurrences. Phrasal verbs consist of a basic verb + another word or words, usually a preposition or adverb. Example: speak (basic verb) + up (preposition)
Phrasal Verb:
chop something off (of) something and chop something off
Meaning:
to cut something off something, as with an axe or saw. (Of is usually retained before pronouns.)