What? You've got to be having a laugh!
Why?What's wrong?- It's 70 quid!
- Oh, the petrol price?
- Yeah. They said it was going to go up this week.
- Again? They can't keep doing this.
- Every week it goes up by 20 quid.
- At this rate I'll have no cash left.
- Yeah. Doesn't it make you really jealous of people who drive hybrids?
- Tell me about it.
- Those things do about 60 miles a gallon.
- Should've bought one.
- Yeah.Should've bought one when I still had money, before the oil companies nicked it all.
having a laugh
："having a laugh"は「冗談だろう！」の意味。英英語では、"kidding me"より頻繁に使われる表現。
quid
："quid"は"pounds"の意味の俗語。「ポンド」（通貨単位）。
petrol
："petrol"は「ガソリン」の意味（英英語・豪英語共通）。米英語ではgas (gasoline)が一般的。
have no cash left
："cash"は"money"の意味の俗語。「お金」。"have no cash left"で「一文無しになる」の意味。
Tell me about it
："Tell me about it"は"That is very true"の意味。「全くその通り」
mile
： "mile"は距離の単位。1マイルは約1.6キロ。
gallon
："gallon"は容積の単位。1ガロンは約4リットル。
nicked
："nick"は"steal"の意味。「盗む」