Mentoe - mental, or crazy or to do something stupid. eg "Steve-O is mentoe" = "Steve is crazy"
Fishal - Official, variation fishally-officially.
Up, down, over - descriptive of geography when used in conjunction with a place. eg "over Westleigh","up London"
They old men - Westleigh Cricket Club
Levelheaded - sensible, as opposed to not very levelheaded being foolish
Triffic - terrific
There or there abouts - possible/possibly
In with a shout - probably/probable
Off my/your box - drunk
Do'drunt - deodorant