What is the meaning of up to his neck?

Deeply involved.
- usage: "neck-deep in work"; "up to their necks in debt"
- synonyms: neck-deep, up to my neck, up to your neck, up to her neck, up to our necks, up to their necks

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APA	WordNet. (2010). up to his neck. Retrieved September 23, 2026, from http://smartdefine.org/up_to_his_neck/definitions/1187604
Chicago	WordNet. 2010. "up to his neck" http://smartdefine.org/up_to_his_neck/definitions/1187604 (accessed September 23, 2026).
Harvard	WordNet 2010, up to his neck, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/up_to_his_neck/definitions/1187604>.
MLA	WordNet. "up to his neck" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/up_to_his_neck/definitions/1187604>

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