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1.
a word used commonly by the australian aboriginals. it means "isn't it?"
nice day ay budda, Unna!!
by bob August 17, 2003
 
2.
word to acknowledge profound understanding of what another person has said, inferring that they need say no more, especially useful when needing to cut someone off before offending other parties involved in dialogue. Can also simply mean yes to any form of request.
"get me a beer"
"unna, bro

"Jan's mum's a dirty tart"
(jan enters room)
"Unna bro, unna"

Comes from slang australian aboriginal language
by Nigeinjapan May 09, 2005
 
3.
another word for bro, cuz, mate etc.
' eyy unna, what are you doing tonight?'
by Danksy February 17, 2011
 
4.
Unna: meaning you. Word of jamaican "patios" Origins.
For example " All unna get ya lazy backsides out of bed"
Or " unna lot best get out of here babylon are coming"
by reggae bwoi cammo June 15, 2006
 
5.
When you are described as being Unna you are referring to a retard with especially straight teeth
Luke is extremely UNNAA
by unna May 01, 2005
 
6.
To want something. play on "I want to"
"Unna go outside naked!"
by Zephyr April 24, 2004
 
7.
(n)a person of which is of australian aboriginal heritage
(v)acting and living like an aboriginal(eg.30 ppl in a car)
(adj)Something that is highly related 2 coon culture

also can be used as fragments in sayings.
Unna=hello,goodbye,ok
Unna der=under there,ther is a black kunt
Unna cuz=i understand man
(n)"Fucking hell these unnas swarm!"
(v)"y dont we unna dat liquor store"
(adj)"Fuck that...doin that shits pretty unna"
by ya mum June 17, 2006