get stuck into

verb3

1. •
   (UK, Australia) Get busy with; become occupied with; become immersed in.

   • After pulling our boat up the beach there wasn’t much to do but collapse onto the sand and get stuck into some serious drinking. — 1998
2. •
   (UK) To start eating.

   • Dinner's ready! Quick, get stuck into it!
3. •
   (Australia) To criticise someone; tell off; to get angry at; to attack.

   • Why are you getting stuck into me all of the sudden? I didn't do anything!