Question

in_the_loop_506 to say something without much advance preparation Synonym: off the cuff

Accepted Answer

OFF THE TOP OF (ONE’S) HEAD Melissa didn’t know how many people had called, but guessing off the top of her head, she said about a hundred.Richard was unsure what kind of advertising campaign the company wanted, but he made a suggestion off the top of his head and they liked it.

Id	in_the_loop_506
Idiom	OFF THE TOP OF (ONE’S) HEAD
Definition	to say something without much advance preparation
Examples	Melissa didn’t know how many people had called, but guessing off the top of her head, she said about a hundred. Richard was unsure what kind of advertising campaign the company wanted, but he made a suggestion off the top of his head and they liked it.
Cross-Refs	Synonym: off the cuff

Top Head Loop One’s Advance Preparation Melissa Didn’t