hemen,derhal,tereddutsuz

listen to the pronunciation of hemen,derhal,tereddutsuz
التركية - الإنجليزية
(deyim) at the drop of a hat
without any hesitation; instantly

We're expected to just do it at the drop of a hat - no notice or anything. It's disgraceful.

(deyim) if you do something at the drop of a hat, you do it suddenly and easily, often without any preparation
instantly, immediately, at once, without delay (Colloquial)