Definition of dig into
1 : to mix (something) into (soil) by digging dig the compost into the soil
2 informal : to begin eating (something) The family was digging into a delicious meal. They dug into their steaks.
3 somewhat informal : to try to learn or uncover information by studying (something) The detectives dug into his past and learned that he had once lived in another country.
4 : to push against (a body part) in a sharp and painful way The bed's springs are digging into my back. Her fingernails dug into my hand.
5 : to push (something) into (a body part) in a sharp and painful way She dug her fingernails into my hand. He dug his elbow into my ribs.
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