U.O.E.N.O 

“U.O.E.N.O” is onomatopoeia for “you don’t even know.” It’s somewhere between an abbreviation and an acronym.

Hint: Say it out loud, quickly.

Made popular by the song "U.O.E.N.O." By Rocko Ft. Rick Ross, A$AP Rocky, Wiz Khalifa and 2 Chainz.

This a thousand dollar pair of shoes and U.O.E.N.O it

This a thousand dollar cup of lean and U.O.E.N.O it

U.O.E.N.O by peptobizniz August 3, 2013

E.N.S 

Eeasy No Steroids

1: I Wanna get muscles.

2: E.N.S

1: What!?

2: Easy No Steroids.

E.N.S by cancroides May 24, 2009

E.N.A (erect nipple alert) 

The look of having your nipples stand out, "erect"

Usually someone with ENA does not have a bra on

Lucy:Janet, that girl has a major case of E.N.A (erect nipple alert)
Janet:OMG, Luc, she totally does! That ho must have forgotten her bra!
Lucy: What else do you expect from the school slut?

E.N.A (erect nipple alert) by Giuseppee! Or Gipsie August 17, 2009

U.O.E.N.O 

stands for "You ain't even know it." If you say the letters aloud it will help you say "You ain't even know it" with an urban accent. This term is used when you are doing something so epic, people don't even realize it's right in front of their face.

These shoes cost half a million dollars, U.O.E.N.O.

U.O.E.N.O by MS3MY August 12, 2013

M.U.G.E.N

A freeware game-creation program that can allow you to create complete fighting games from scratch. There are MS-DOS and Linux versions available on the Internet.

There are few original M.U.G.E.N games, characters, and stages on the Net because most people are so lazy that they just rip sprites and graphics from commercial videogames, and make characters and stages out of those.

M.U.G.E.N by AYB March 11, 2003

N.E.N.S. 

Negro Eat Negro Sleep- an acronym for the condition that occurs when an African American person becomes lethargic (sleepy) after eating a meal.

I just ate and now I got the N.E.N.S. I'm gonna go take a nap.

N.E.N.S. by ThaliaS April 2, 2007

B.E.N.T.E 

B.E.N.T.E simply stands for "Bitch Eating No Titties Eh?", this word can be used for straight guys who found out a girl is a lesbian, or a lesbian who found out a girl is straight.

- Dude, b.e.n.t.e?

- Yeh, no kidding dude

B.E.N.T.E by anonymous September 8, 2018