at the top of (one's) lungs

at the top of (one's) lungs

As loudly as one can. I've hardly slept because my infant has been crying at the top of her lungs all night. Sing at the top of your lungs so that the people in the last row of the auditorium can hear you!
See also: lung, of, top
Farlex Dictionary of Idioms.

at the top of one's lungs

Also, at the top of one's voice. With an extremely loud voice. For example, The babies in the nursery all were crying at the top of their lungs. The noun top here refers to the greatest degree of volume (that is, loudest) rather than high pitch, a usage dating from the mid-1500s.
See also: lung, of, top
The American Heritage® Dictionary of Idioms by Christine Ammer.

at the top of (one's) lungs

As loudly as one's voice will allow.
See also: lung, of, top
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • at the top of lungs
  • at the top of one's lungs
  • at the top of voice
  • at the top of your voice
  • at the top of (one's) voice
  • come on top of
  • come on top of (something)
  • storey
  • top story
  • top