"And maybe avocados as I am not entirely certain what "twat" refers to in the UK."

I wouldn't get too hung up on the use of the word "twat". Although an insult it has other meanings too:

1) As an insult: "It's your round, you daft twat"

2) A lady's whotsit.

3) To get drunk: "I would have stayed for last orders but the soddin' vicar was twatted again and started singing "Jesus I have Promised" in the bogs again"

4) To hit someone: "He went on and on about MU winning the champions league last year so I twitted him".

Lovely!

Shakespeare would have loved this fine contribution to our language:

Profanisaurus