Get/sink your teeth into something - Idioms by The Free Dictionary
get/sink your teeth into something
get your teeth into something or
sink your teeth into something
COMMON If you get your teeth into something or sink your teeth into it, you do it with a lot of energy and enthusiasm. We've not had an interesting legal case to get our teeth into for weeks. I like a nice substantial project to sink my teeth into.
get (or sink) your teeth into work energetically and productively on (a task).
get/sink your ˈteeth into something (informal) put effort and enthusiasm into something that is difficult enough to keep you interested: This job is too easy. Why can’t they give me something I can really get my teeth into?