1
general::
Phrase(s): tear something off (of) someone or something [and] tear something off
to peel or rip something off someone or something. (Of is usually retained before pronouns.) • Max tore the necklace off his victim and ran away with it. • He tore off the necklace., Phrase(s): tear off (from someone or something)
to leave someone or something in a great hurry. • I hate to tear off from you guys, but I’m late for dinner. • It’s time for me to go. I have to tear off.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Produce hurriedly and casually, as in He tore off a poem a day for an entire month. 2. Leave in a hurry, as in She tore off to the store because it was about to close. [c. 1900]
American Heritage Idioms