Under an entry for rip something off, The Free Dictionary says:
To steal (something). A noun or pronoun can be used between "rip" and "off."
The kids were caught going to different shops around the city and ripping off snacks.
If you're ripping cars off, you're going to get caught!
To plagiarize or shamelessly copy something or someone. A noun or pronoun can be used between "rip" and "off."
It's a cool-looking movie, but they totally ripped off Alien.
I can't believe he ripped my idea off like that!
Hey, that was my idea! Don't rip me off like that!
So are these two uses common?