look up any word, like the eiffel tower:
 
14.
Hard to define, it's a complimentary or derogatory term depending on usage. It can refer to a person as someone that is cool, tall, muscular, strong, or a friend (synonym: dude). It can also refer to a penis or someone that is negatively referred to as a penis (synonym: dick).
You can call anyone 'unit' or 'a unit' or 'the unit' and so on. 'Unit' can be used as a complimentary term or as a derogatory term.

Examples:

"What's up, unittttt!"

"That kid's a fucking unit."

It's all about the emphasis on 'unit'. The usage derives from both 'dude' and 'cock'. 'Dude' is more often complimentary while 'cock' is sometimes just 'cock' and other times 'cock' is derogatory.

Examples:

"Ahhhh, unitttt!!!! What's up, kid?!?!?"

"She couldn't handle my gigantic unit."

"He's the biggest fucking unit."

Also derives from Randy Johnson, also known as 'The Big Unit'. The first known usage of the modern 'unit' terminology was by a Boston man, himself a big unit because of his height, strength, and ability to crush beers.
by Unit Man January 22, 2010
 
1.
An absolute machine of a person. Looks like they never leave the gym and usually out to cause trouble.
Terminator is considered a unit
by Matt Brooksy May 08, 2006
 
2.
Used in Beavis and Butthead Do America, unit, refers to penis.
"Uh-huh-huh, do you want to see my unit?" --Butthead
by cold_mh769 August 03, 2003
 
3.
Male penis. also known as a dick, cock, schlong, meat, wiener, noodle, winky, pipe, peepee, ding-dong, snake, tube, hose, worm, caca, dinkerbell, thing, it, willy.
My unit has many names.
by XSGame September 06, 2005
 
4.
1> someone who is indescribable.

2> some one so fucked up, & complicated that they can only be discribed by the word UNIT
that Cherise is some UNIT.
by joshua power June 27, 2009
 
5.
your parental "units", your parents
God the units are cramping my style
by Nix & BL June 21, 2001
 
6.
Big sturdy bird you wouldn't want to mess with but would want on your side if things started to get tasty.
Ere Bri, you seen that big old Bella Emberg in accounts?
Aye, a right unit.
by LoonyBob September 10, 2010
 
7.
A clothing brand designed for bogan pride.
A typical bogan will have a big Unit sticker on the back of their Commo.
John put a Unit sticker on the back of his commo, and then drove down the street throwing empty rum cans at lebs
by Joe!Joe!Joe! August 28, 2010