. Cwtch, our word for 'cuddle' but cwtch is better by miles.
. Peng, used to describe someone who's attractive (horrible word)
. Dwt, a small/petite person
. Scram, as In if a cat scratches you.
. Drive, what everyone calls a bus/taxi driver when getting out, as in 'cheers drive'
. Lush, obvs.
. Cob, a bread roll.
. Lager dash, pint of lager with a dash of lemonade, English people got confused when asked for that in pubs
That's it off the top of y head.