"throw hats"
When someone says: "We'll throw hats at him!", it's usually not a compliment at all.
This phrase is used with an ironic connotation and indicates excessive self-confidence, a frivolous belief in an easy victory without real effort or preparation.
The expression comes from ancient times, when a hat was a mandatory attribute of a soldier. It was believed that the soldiers were so numerous and strong that they could defeat the enemy simply by "throwing their hats".
units of expression
๐ฟ Russian proverbs