at the top of your lungs
US /æt ðə tɑp əv jʊər lʌŋz/
UK /æt ðə tɑp əv jʊər lʌŋz/

1.
a plenos pulmões, o mais alto possível
as loudly as you can
:
•
She screamed at the top of her lungs when she saw the spider.
Ela gritou a plenos pulmões quando viu a aranha.
•
He sang the song at the top of his lungs in the shower.
Ele cantou a música a plenos pulmões no chuveiro.