Oxter cogging
Helping a friend who has had too much drink by taking an arm each and walking them home between you.
He was that full we'd to oxter cog him the whole way up the street.

Shall I translate it into posh English for you, mucker?
Do excuse my tweed. Here it is in posh English.
He was so inebriated that we were obliged to support him under each arm the entire length of the street.
Questions
What does oxter cogging mean in Ireland?
Helping a friend who has had too much drink by taking an arm each and walking them home between you.
Where in Ireland do people say oxter cogging?
People say oxter cogging in Down and Derry.
How do you use oxter cogging in a sentence?
“He was that full we'd to oxter cog him the whole way up the street.”
Updated
On the list: Irish slang for drunk
Same phrase, other counties
- Down (not in the dictionary)
- Derry (not in the dictionary)