pinch (one) off

pinch (one) off

vulgar slang To defecate, especially quickly. Give me a minute, I just need to go pinch one off and then I'll be ready to leave.

See also: off, pinch

pinch something off (of) something

 and pinch something off

to sever something from something by pinching. (Of is usually retained before pronouns.) Pinch the buds off the lower branches so the one at the top will bloom. Pinch off the lower buds.

See also: off, pinch