Synonyms: up to her neck, up to his neck, up to my neck, up to our necks, up to their necks, up to your neck, neck-deep
Definition: deeply involved
Usage: neck-deep in work; up to their necks in debt
Similar words: involved
Definition: connected by participation or association or use
Usage: we accomplished nothing, simply because of the large number of people involved; the problems involved; the involved muscles; I don't want to get involved; everyone involved in the bribery case has been identified