Meaning : Deeply involved.
Example :
Neck-deep in work.
Up to their necks in debt.
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 ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Neck-deep ka matlab kya hota hai?