go bananas
· I am going to go bananas if I don't have a vacation soon.
· MEANING:go crazy (来源：英语麦当劳－英语快餐EnglishCN.com)
kick
· I get a kick out of watching him paint.
· MEANING:enjoy
make waves
· Try not to make waves around the office.
· MEANING:cause trouble
mickey mouse
· The homework the teacher gave us was mickey mouse.
· MEANING:nonsense and a waste of time
no sweat
· It's no sweat to have the report in to you by Monday.