This is the 7682nd most frequent Russian word.
заманской
The word "заманской" does not exist in standard Russian vocabulary; it may be a typo, misheard word, or slang.
The word 'заманской' is used here to describe something alluring or tempting.
Я купил заманской подарок для друга.
I bought a tempting gift for a friend.
In this sentence, 'заманской' describes the project as attractive, drawing one's interest.
Этот заманской проект требует много усилий.
This enticing project demands a lot of effort.
Here, 'заманской' is used to highlight the appealing quality of her voice.