fin bro

A fin bro is a finance bro. They work in finance and that is their only personality.

Jake: Ethan is going to study Finance.
Sully: OH? Ethan is going to be a fin bro.

punch their fins out

Destroy the fins on someones surfboard. Specifically if that someone is ruining your surf and not a native.

Originated from bloodborn Aussie's living off the Gold Coast.

These beta cucks just dropped in on our swell. They better have 2nd generation grandparents from the Gold Coast, or we'll punch their fins out.

Ms. Fins

A girl that had to wear glove things as a baby so they didn't scratch their face. Or maybe you're just an idiot and act like a fish 24/7.

It could be a nickname , Ms. Fins

Fin Hadfieled

Fat chubby geeeeezer commonly known as fin Hadfieled

Eww it’s Fin Hadfieled

That fat bitch?

sweet dogging ding fin

super cool, rad, awesome

“i just farted”-boy
“oh sweet dogging ding fin” -girl

fin dun sum bum

To complete something to a highly satisfying level

I have just completed a walk and would say fin dun sum bum

len wel thirn forn fin sin sen ayn ine un

Shortened forms of the numbers from eleven to twenty, used by some musicians as a way of counting beats in music that has time signatures over ten beats per measure.

"One two three four five six seven eight nine ten len wel thirn forn fin sin sen ayn ine un...what kind of a crazy piece of music is this, in 20/16?" I'e never seen anything like it before!