Fewer is a word used in place of less when you want to sound like you majored in English at college, but will more likely end up making you look like a pompous asshole.
According to grammar nazis, there is a rule that “fewer” only modifies countable nouns and that “less” can only modify mass (uncountable) nouns. However, this "rule" is just one of the many superfluous decisions made in the 18th-century by pretentious douchbags who felt that certain things were mistakes simply because they didn't seem elegant or proper enough.
Despite what they say, the rule is not even commonly followed. This is probably because not everyone is anal retentive enough to quibble over arbitrary details that have little to do with how the language is actually understood and used by normal people.
Supermarket signs should read “10 items or fewer”, not “10 items or less”.
Fewer people showed up to the party than I expected.
I need to eat fewer doughnuts and drink less soda.
The act of defenestrating someone (throwing someone out the window) then jumping after them.
Guy 1: Damn, Jack did some fewerty
Guy 2: What?
Guy 1: He threw a random guy out the window then jumped after him.
Guy 2: We should really get Jack drug tested.
It's a very honest message from Youtube that appears on video results section of Google Search. It's a good message to let people stay away from Youtube or encourage them to use adblockers and apps (like Vanced).
Watch adsnow so you can enjoy fewer interruptions.
Because I WANT MONEY I WANT MONEY I WANT MONEEEEEEEEEEY!!!!!!! YOU UNDERSTAND!?
- Susan Wojcicki