"pants = underwear (how did we forget this one?)" -Lee

Reckon = think (I reckon this word sounds sort of ridiculous)

On offer = on sale

Cash point = ATM (I even say that now without thinking about it)

Queue = a line

Double 8 = 88 (as in Double 0 7!)

Swap out = to switch on and off.

Diversion = detour

Polo neck = turtle neck

Plaster = band aid.

Bill = check

Antenatal = prenatal

Jumper = sweater

Cinema = movie theater

Compulsory = mandatory

Fringe = bangs

Mine = my place, "come over to mine"

Till = cash register

Bank holiday = national holiday

Public school = private school

Post = mail

Joiners = carpenters

Thanks to Lee and David!