sink (one's) teeth into (something)(redirected from sinking their teeth into)
sink (one's) teeth into (something)
To start doing or become involved in something with one's utmost energy, determination, or enthusiasm. I'm always looking for a great book to sink my teeth into. I've got a new project I'd like you to sink your teeth into.
sink one's teeth into
Also, get one's teeth into. Become fully engaged in, as in He couldn't wait to sink his teeth into that problem. This metaphoric expression alludes to an animal biting vigorously into its prey. [Early 1900s]
sink (one's) teeth intoInformal
To undertake an endeavor energetically: She sank her teeth into the challenging project.