Sink (one's) teeth into (something) informal verb phrase
To get very involved in something with one's utmost energy, determination, or enthusiasm
That project is interesting. I can't wait to sink my teeth into it.
I'm recently sinking your teeth into a really good book about reincarnation.
Adequate measures or actions
To do one's best or try one's best to do something
If you desire something good or appealing, you must make the necessary effort to acquire it.
To work really hard in order to attain something.
The verb "sink" should be conjugated according to its tense.
This metaphor refers to a predatory animal biting down hard on its prey. [Early 1900s]
Used to emphasize that someone or something is a lot more or a lot better
Mia can paint a damn sight better than I can.