Fuck Knuckle

The second knuckle of any digit when inserted into an orifice in a sexual manner.

I was fingdipin' this girl to the fuck knuckle after the baseball game the other day.

by elcapitandeganja October 18, 2013

Fuck up

Person that destroys their social life with an unfortunate event they regret so very much

Person A: Dude, yesterday I made out with my best friends in my bday party bc we’re gal pals and now I can’t look at them in the eye
Person B: You’re such a fuck up

by imsorrymom May 27, 2019

Fuck around and find out

See: the scientific method.

'Please welcome the recipient of this year’s Nobel Prize. His groundbreaking work has stunned the world, defied expectations, and rewritten the rules. Tell us—how on earth did you arrive at this ?
'Fuck around and find out!'

by Jammosito May 14, 2025

Beak fuck

When a wood pecker really goes to town on a tree, generally a rotten one that it can really sink its big hard beak into

That woodpecker is really beak fucking that tree

by Wankiedoodle April 18, 2018

Fuck

Whatever word has this word in is a swear word.

Fuckwit, yes that’s bad too.

by Milosh2008 September 9, 2025

No need to fuck commas

From Finnish, 'pilkunnussinta' lit. comma-fucking

No need to make unnecessary corrections that add nothing to the discussion at hand

A: bananas are easily my least favourite fruit.

B: well, they're actually berries
A: that doesn't matter, no need to fuck commas

by Sol618 August 25, 2022

Fuck

To put ur penis in a vagina or a pussy and hump it😃

Hey girl let's fuck

by Needed were see secret January 18, 2018