sink one's 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'd like you to sink your teeth into a new project that I'm developing.
See also: sink, teeth
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

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]
See also: sink, teeth
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sink one's teeth into, to

To become fully engaged or engrossed in something. The analogy in this term, which began to be used figuratively only in the early twentieth century, is to the animal that bites deeply and vigorously into food. Dorothy Sayers used it in Gaudy Night (1935), describing a scholarly effort: “If one could work . . . getting one’s teeth into something dull and durable.”
See also: sink, teeth
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
The reader gets a less skewed and partial view of Wagner than in portraits provided by more partisan writers, but the result also is not a book on Wagner that one could sink one's teeth into (for that, readers may want to consult the biography of Winifred Wagner by Brigitte Hamann, a wonderful book one reads with clenched fists).
It is mostly an effective primer for further exploration into libertarian political philosophy, accessible to those not well-versed in the subject, but deep enough to sink one's teeth into.
But nearly every issue provides concurrent opportunities to sink one's teeth into some piece of writing that's expansive, detailed, replete--one that indulges in a beginning, middle and end, and uses plenty of words to illuminate the sights along the way.
The fourth section on `The Prose Satirist' offers twice the number of essays and more to sink one's teeth into. Robert Phiddian's piece on truth and power in the eighteenth century as it was concocted around the figure of Bickerstaff is an outstanding application of Foucault to Swift and other writers of the period.