I went into my local slang in this thread
previously, but recently found this wonderful article.
Newcastle sayings updated: The top 47 things that you'll only hear a Geordie say - a guide to Geordie sayings - Chronicle Live
Some of my favourites featured in this article are:
5. Geordie saying: howay man!
Non Geordie translation: generic proclamation of exhortation or encouragement, can be both positive and negative
Usage: "Howay man! We gannin' doon (going down) Morrisons to beat the queue?"
NEW: important note: howay must also be followed by man, which explains the popular but somewhat confusing phrase "howay, man, woman, man!"
39. Geordie saying: workyticket
Non Geordie translation: someone being mischievous or downright annoying
Can also be used as a verb, as in to work one's ticket, meaning to behaving in a vexing manner.
43. Geordie saying: had ya pash
Non Geordie translation: keep your cool, be patient (literally "hold your patience, old fellow")
Usage: "How man, had ya pash, divvin' be a workyticket."