be (right) up (someone's) arse
British, very informal!
to be driving too close to the car in front of you.
That police car's been up my arse since we left London.
英语词组固定搭配大全包含18674条英汉双解词组,基本涵盖了全部常用英文词组、短语的翻译及用法,是英语学习的有利工具。