sponge off someone

sponge (something) off (of) (someone or something)

To beg, borrow, or obtain as a handout (something, usually money or food) from someone or something else. My brother's been sponging off my parents ever since he dropped out of college. My roommate's a nice woman, but she's always sponging food off of me, and I don't have the heart to tell her to stop.
See also: off, sponge

sponge off someone

in. to live off someone; to take advantage of someone by taking food and shelter from them without compensation. Go get a job! Stop sponging off me!
See also: off, someone, sponge