not care a hoot Definition

hoot
noun

1. The call of an owl, or a similar sound.
2. The sound of a car horn, siren, steam whistle, etc, or a similar sound.
3. A loud shout of laughter, scorn or disapproval.

Thesaurus: catcall, hiss, jeer, raspberry (slang), shriek, whoop.
4. colloq
A hilarious person, event or thing.

verb hooted, hooting

intr
1. Said of an owl: to make a hoot.
2. To sound (a car horn, etc).

Thesaurus: boo, jeer, howl shriek, whoop.
intr
3. Said of a person: to shout or laugh loudly, often expressing disapproval, scorn, etc.
4. To force (a performer) offstage by hooting.

Idiom: not care a hoot (not give a hoot, not give two hoots)

colloq
Not to care at all.

Etymology: 13c: probably imitating the sound.