Deezee 

Referring to the letter 'D' of the alphabet, in which case it is used as a common noun (a person, place or thing)
In other instances, as in the sentences below, 'deezee' is, and may commonly be, used with other words as an adjective (or a set of words that further clarifies/ describes a noun) Since the example below shows the defined word used in a sentence to further clarify/describe the common noun, bra size, the word 'deezee' is used as an adjective. Deezee, which refers to the cup size D, is used with the numerical slang 'trip', which further clarifies/describes the noun in question, and indicates that the (very expensive) bra size discussed in the example below is a triple D.

Wow that is a huge bra! What size do you wear?
Oh, my bra size? Trip deezee.

Deezee by My Middle Name Is Danger October 7, 2018

Deezee Day

A day when everything is hectic and goes wrong, when your coffee spills, your boss tells you to stay overtime, your teacher gives you extra homework or you fail a test and you feel anxious.

Person 1: Hi how's it going?
Person 2: shit not so good this day is crazy..Ugh!

Person 1: having a Deezee Day I see.
Person 2: yeah man everything is going wrong, I'm done with this.

Deezee Day by crazy doll February 28, 2012

Deedee Megadoodoo 

Fallen police officer Deidre Mengedoht’s name was Wrongly pronounced as Deedee Megadoodoo, Rest In Peace Deidre

News Woman: hundreds gather today to say their final goodbyes to this fallen Louisville police officer Deedee Megadoodoo. I'm sorry...

Deedee Megadoodoo by Don’t f with me I’m gay 4 U January 24, 2020

deedeeish 

Someone who is deedeeish exhibits qualities similar to that of deedeess, a popular member of the UKNova website.
A candidate is typically northern and jolly.
S/he is typically likeable and enjoys shandy. The drink may become known as "fook! where is my shhhhandeeeeee" later in the night. This state of inebriation is known as being shandied, and is often accompanied by cries of "foke av fookign spilt me shandy".
A person who is deedeeish will often exhibit strange typing/spelling/speech patterns in a manner which is often incomprehensible to others.
A person who can be described as deedeeish will enjoy numbers guessing games, and playing "Bangin Choons"

"ach feck, me fookin shandy, i'm so fookin deedeeish"

deedeeish by Phesarnion September 2, 2008

deepeeing

The taking in if two penis's from two guys at one time. The verb of double penetration.

"Abbhi and Steve were deepeeing Vicky and the dog tried to join in. I have it all on video!"

deepeeing by smokepipe30 February 26, 2010

Deezer 

A skill-less noobcakes, lacking in macro, micro, and manners. Will often resort to BM tactics such as stream cheating to ensure his survival, though this is often still not enough to make up for his species' inability to adapt to higher skill play.

Is (Insert player's name) playing Deezer?

Deezer by ZiggyStardst June 16, 2011

Deepee 

Deepee is a slang, mainly used by teens in 21st century. It represents the true meaning of life, thats why it can basically mean anything.

Hey man! What’s up?

Nothing much. One deepee the other night almost ran under my car while I was driving.

Deepee by Skinnyžena September 3, 2019