It's very odd, isn't it? His American accent doesn't drop at all other than when he swears and then it's a very thick Yorkshire accent.

Its for added emphasis. Makes the curse stand out a bit more.

Probably leant how to swear in the Yorkshire accent.
Not really strange.

Yeah I notice his swearing being in a British accent. I guess it's just something he's picked up from living over here.

Its a symbol for him being half british at heart

Cos its more f****ing sophisticated.

What a drama llama he is . Oh shut your pie hole Austin .
"Some of us are 5,000 miles from home not 30 ". I never knew Huddersfield was that far from the BB house . Silly me .

No-one swears like the British

When he does his "effing hells" it reminds me of that sheep episode of father ted.