Deckerstar 

A ship that will never get in bed together unless hell freezes over

Hey did you see that hell froze over?

Omg! That means Deckerstar finally had sex!

Deckerstar by Lucifannnn June 15, 2019

Deck bits 

1. Women's genitalea, breasts and Vagina; 2. Metal bollards on jettys or wharves which boats use to tie up to.

Check out the deck bits on her; throw out a line we need to tie up to that deck bit.

Deck bits by Craighanna June 16, 2013

the upper decker 

the act of deficating in the upper tank of ones toilet leaving a foul stench undiscovered with the remnants of muddy water

before i got kicked out of that bar last night i gave them the upper decker

the upper decker by face vol.4 May 23, 2009

decksex 

A period of intense focus when creating decks for collectible card games such as Magic: The Gathering. Often stretching into the twilight hours of the night and replacing actual playing time altogether.

Mark: "hey you wanna play some MTG tonight?"

Phil: "Yea sure. I had some major decksex last night, need to playtest some new cards"

decksex by MrCopacetic June 8, 2014

Theo Decker 

to “Theo Decker” is to be in deep denial about your gayness. This is often when somebody suffers with deep rooted internalized homophobia and compulsory heterosexuality. A “Theo Decker” might even be in love with somebody of the same sex without admitting it to themselves.

Theo Decker was a repressed homosexual in love with his best friend

“That guy’s a total Theo Decker!”

Theo Decker by broadwaybyler December 16, 2018

Double decker biscuit

Someone who is really cute and very thick

That girl looks like a whole double decker biscuit

Double decker biscuit by Score!! February 25, 2019

Upper Decker

Step 1) Make sure nobody's around.

Step 2) Quietly open the lid of the upper-section of the victim's toilet.

Step 3) Quietly place the lid down on the floor.

Step 4) Then take a nice shit in the upper-section of the toilet without letting anybody hear you.

Step 5) Wipe your ass.

Step 6) Place the soiled toilet paper in the upper-section of the toilet or in a drawer or magazine.

Step 7) Slowly lift the lid off the floor with your fingers under it and carefully bring it over to the toilet.

Step 8) Here's the hard part; with your fingers under the lid
slowly place the lid on the toilet. No false moves or you're screwed.

Step 9) Leave and don't let anybody see you. Just bail as quickly as possible.

Step 10) Mission accomplished.

Plumber: It looks like you have feces in your toilet's tank.

Victim: It must have been an upper decker.

Plumber: Yeah right. Its already clear that you're stupid enough to shit in there!

Upper Decker by Mike_Litoris June 29, 2011