NOT CARE (OR GIVE) A HOOT (OR TWO HOOTS)
Meaning of NOT CARE (OR GIVE) A HOOT (OR TWO HOOTS) in English
not care ( or give) a hoot (or two hoots)
informal
not care at all.
→ hoot
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004