look up anything, like your first name:
1. Wrong 'un
A wrong 'un is a phrase used to describe someone or an action someone has undertaken that you disapprove of. It is not offensive merely an expression. Probably originates from the Midlands in England.
Billy-Bob ''I did 4 grams of coke last night!''
Jimmy-Joe ''You're a wrong 'un, you are!''
2. Rusty Wrong'Un
A Ginger(red haired person)That you dislike.
There hair is Of a rust colour ..
Rusty Wrong'un
Ginger girl:Your a dumb blonde air head
Blonde Girls response: Your a Rusty Wrong'un!
3. wrong-un (n), dry ~ (v)
Like its name suggests, the term "wrong-un," (taken from cricket jargon) means "wrong one."

It can be used as a transitive verb, which is means "dry anal sex," since it leads to major complications if you try to say "dry wrong-unal sex."

As a noun, the term "wrong-un" is one's arsehole, and the term "dry" doesn't come into play.
As a transitive verb: "Hey, Scotty! I heard ya gave ya woman dry wrong-un!"
As a noun: "Hey, I heard you got some on the week-end, Scotty. Do you do her up the wrong-un? Ha, ha, ha, ha, ha!"
by Bean-o Apr 30, 2003 add a video
4. wrong-un
(noun) The arse-hole.
(As a verb) Anal sex

See also, "Dry wrong-un," meaning "dry anal sex"

"Oh, yeah! Go up my wrong-un, baby!"
"You know I like (dry) wrong-un, Scotty!"
by Bean-o Apr 30, 2003 add a video
5. wrong-un
Someone who is just wrong either a sex case,nonce or similar
" the Taff is a wrong-un, spends his rent money on skin mags and 1.50p texts, won't be long until he's up in court again "
6. Kim Jong-Un
Rhyming slag for wrong-un, i.e. wrong hole, i.e. anus.
The sentence "My wife won't let me do her up the Kim Jong-Un." would be shortened in rhyming slang parlance to "The Trouble won't let me do her Kim."
7. wrong-ger
More than just plain wrong, wrong-ger.

Often used to describe something/someone physically unpleasant.

Can only be topped as superlative by wrong-gest
Me: Mate, doing that bird after 10 pints was just wrong

Mate: You say that, but the one you had with the hair lip was wrong-ger

rss and gcal