blow on it

blow (up)on (someone or something)

1. obsolete To defame or discredit someone or something; to slander or ruin someone's or something's reputation. No one in town would do business with Mr. Farnam after his honor and integrity had been blown upon by the duke. Think very carefully before you go blowing on someone of his rank, lest you wish to make a very powerful enemy.
2. obsolete To expose, reveal information about, or inform against someone or something. Confess to the crime, Cedric—your cronies have already blown upon you! He followed the traveling salesman to his next destination, intending to blow on his product as the snake oil that it was.
See also: blow

blow on it

slang Calm down! I know you guys are upset, but blow on it! You're going to wake the neighbors!
See also: blow, on
Farlex Dictionary of Idioms.

Blow on it!

Sl. Cool it!; Take it easy! It's all right, Tom. Blow on it! Hey, man. Relax. Blow on it!
See also: blow, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

Blow on it!

exclam. Cool it!; Take it easy! It’s all right, Tom. Blow on it!
See also: blow, on
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • blow (up)on (someone or something)
  • blow on
  • do for
  • do for (someone or something)
  • done for
  • bring (someone or something) into disrepute
  • bring into disrepute
  • disrepute
  • do something for (someone or something)
  • do something for somebody/something