noun | hahrd kap
A hard cap is like the bouncer at an exclusive nightclub - it's the maximum amount of money that a project is willing to raise during its ICO or token sale. Once the hard cap is reached, the party's over and no more money can come in (unless you're willing to slip the bouncer a few ETH on the side).
Example
"We set the hard cap for our ICO at 100,000 ETH - anything more than that and we'd have too much money to know what to do with. Plus, we want to keep our token supply nice and scarce, like a limited edition Beanie Baby."
"Yo, did you hear about that new DeFi project? They raised their hard cap in like 30 seconds flat! I tried to get in but the gas fees were higher than Snoop Dogg on a Saturday night."