Be as long as my/your arm 〔文書などが〕やたらと長い - very long
Two friends are talking about things they need for Christmas.
A - Do you need to get any last minute shopping for Christmas? B - I certainly do! I`ve got a list as long as my arm! A - I`ll get some things off the list if you want me to. B - That would help a lot, thanks.
Past - was as long as Present - is as long as
Bah! Humbug! フン！くだらない、ばかげている - Used at Christmas time by people who don`t like Christmas. It can mean nonsense too.
Two friends are talking about Christmas.
A- Christmas is coming. I`m getting really excited. Family, friends, food and presents. B - Bah! Humbug! A - You don`t like Christmas? B - It`s a waste of time, money and effort! I don`t know why people like it! A - I don`t want to see you on Christmas day! B - Fine with me.