Longman Dictionary of Contemporary English
heavy breather
noun
EXAMPLES FROM CORPUS
▪ She had reduced the voice to something on the same level of annoyance as a heavy breather.
Usage examples of "heavy breather".
Abruptly Fric became convinced that the heavy breather was not a man, but an animal.
Wrong number, heavy breather who chickened out, spurious signal from New York's overloaded phone system?