breathe on

breathe (up)on (someone or something)

To exhale onto someone or something. Quit breathing on me with your germs—I don't want to get sick, too! The engagement ring is so expensive that I'm nervous to even breathe upon it!
See also: breathe

breathe (up)on someone or something

to exhale on someone or something. (Upon is more formal and less commonly used than on.) Please don't breathe upon the food. Don't breathe on me!
See also: breathe, on