off the top of one's head
/ɒf ðə tɒp ʌv wʌnz ˈhɛd/
without careful thought or consideration
“He answered off the top of his head quickly.”Add to my deck
/ɒf ðə tɒp ʌv wʌnz ˈhɛd/
without careful thought or consideration
“He answered off the top of his head quickly.”Add to my deck