off-the-cuff
adjectiveUK /ˌɒf ðə ˈkʌf/
US /ˌɔːf ðə ˈkʌf/
Said or done right away without planning.
She gave an off-the-cuff answer to the question.
RELATED WORDS
OTHER MEANINGS
2. Done without preparation, as a speech or remark.
His off-the-cuff speech made everyone laugh.
3. In a casual or informal way.
He spoke off-the-cuff about his weekend.
4. Made quickly without careful thought.
That was just an off-the-cuff guess.