Dusty dagger 

A penis has multiple STDs HIV and possibly AIDS

Steve:I heard you got a Dusty dagger

Jack:my dick fell off

Dusty dagger by Dusty dagger prevention August 28, 2019

Ninja dagger

Coined after Maximiliandude said the n word on stream playing for honour
He back tracked claiming he said ninja dagger or ginger dagger
Members of r/kappa ran with it and it permeates deeper parts of the online fighting game community

Max loves hangin with his ninja daggers

Ninja dagger by Quigy July 20, 2022

Drop the dagger 

Killing a TV show's or movie's main villain in a rushed, unexpected way – without providing more context or consequences.

The term originates from Season 8 Episode 3 of Game of Thrones, where *spoiler alert* Arya Stark unexpectedly killed the show's main villain, the Night King by dropping a dagger and stabbing him. The motivations of the big bad guy were never fully explained.

Similar to jump the shark.

Game of Thrones dropped the dagger last night when the Night King was killed off.

OR

The Mentalist really did drop the dagger when Patrick Jane killed Red John.

Drop the dagger by kvikly May 27, 2019

HE GOT THE FUCKING DAGGER 

Referring to when Louis Tomlinson got the fucking dagger after a year of his fans telling him to get the dagger to match harry's rose. And also an umbrella term describing what proceeded afterwards, which included him saying that the "rose has already been taken care of"

when ur feeling down, remember: HE GOT THE FUCKING DAGGER

HE GOT THE FUCKING DAGGER by 282-828-2828 October 26, 2022

muff dagger 

your todger, old man , penis

get your leg open love, make room for me muff dagger

muff dagger by algarve dave December 14, 2004

Jobsworth spam dagger 

When a fat, greasy bar man hunts you down because you wont take your wood away and there's a band coming at 6 but your stranded due to adverse weather conditions and your trying to find a canoe

Look you jobsworth spam dagger.. i'm trying to get a canoe to get to you but i might not be there before the band gets there at 6 so you might have to be a hero and cut the wood with your fat spam axe.

Jobsworth spam dagger by Bryoan April 19, 2012

Cloak and Dagger Curly

The hidden hair you find inside your glass just as you finish your last drink. You think it's a crack in your glass, but then realize it's on the inside. It's most likely a long lost pube, but even if not, one must assume it is.

Dammit! I just got the cloak and dagger curly. I could almost floss with this thing it's so long.

Cloak and Dagger Curly by Hoobanutta April 5, 2017