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Wise up
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A threatening term ususally found being said out side a pub at closing time.
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Get out of here now, please
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this means go away and leave me alone in belfast

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ur annoying me. . belfast
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bent on causing trouble.

 

example - "he has an ill set mind" 

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to lose the head is to lose control in anger

 

"mate! will you just back of before I lose the head!" 

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see - "lose the head"
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To Fight/Assault

 

e.g. "He belted him round the neck!"