chisel in on (someone or something)(redirected from chisel in on him)
chisel in on (someone or something)
slang To gain part of or involvement in something by unfair methods. Any time my parents give me money, my brother manages to chisel in on it by whining to them.
chisel in (on someone/something)
in. to use deception to get a share of something. I won’t chisel in on your deal.