because 

The shorthand version for expressions like "because of" or "because I am".

Made popular thanks to sites like Twitter, where brevity matters; now often used jokingly or ironically, even in regular conversation.

We're going drinking after class because Friday.

Tommy forgot to charge his iPad before the meeting because stupid.

I don't do drugs anymore because flying monkeys.

because by BornBlitzed March 16, 2013

because 

Abbreviated use of the phrases "because of (noun)" or "because it's (adjective)"

"Why'd you go to her party, if you don't like her?"
"Because cake."

"I must have this new gadget! Why? Because awesome!"

because by smendler April 18, 2013

because 

A word that all parents can't live without. It has no real meaning.

"PLEASE PLEASE PLEASE I BEG OF YOU!!!!!"
"WHY THE HELL NOT?"
Because.

because by Chloe September 9, 2003

because 

The most terrible of motives and the most unanswerable of responses

Homosexual male: "Why did you call me a faggot"

Young hooligan: "..because."

because by vvhatsernameyourface January 23, 2009

Because 

It means whatever the person wants it to mean. It's a reason for everything.

Why don't you like that? ...Because

Because by ManWhore1 April 19, 2013

because 

my uncles excuse for anything

daughter: "Daddy why are you drunk?"
uncle: (after short pause) "BECAUSE"

because by supernal December 28, 2005

Because 

Because: you are going to explain what you said in sentence

I like studying because i want to be educated.

Because by Jesmion Chikwudi Ibekwe August 10, 2017