get (one's) teeth in
To start doing or become involved (in something) with one's utmost attention, energy, or determination. This book looks great—I can't wait to get my teeth in! I'd like you to get your teeth in a new project that I'm developing. A: "Whoa, your intern already got all this filing done?" B: "Yeah, she really got her teeth in!"
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.