Under one`s thumb
Obedient to someone, controlled by someone.The man is only an assistant salesman but he has his boss under his thumb.
Up to scratch
Meeting normal standards, equal to the usual level or quality.The carpenter's job was not up to scratch so we fired him.
Up to par
Meeting normal standards, equal to the usual level or quality.The man's work was not up to par and he was asked to leave his job.
Up to one`s ears in work
Have a lot of work to do.I would like to go with you but I am up to my ears in work at the moment.
Up to one’s chin
Very busy with something, deeply involved in something.The mayor has been up to his chin in the project to build a new convention center.
Up to no good
Doing something bad.The boys were up to no good after school.
Up to it
Capable or fit for something.If he is up to it we can let him drive the truck to the new office.
Up to here with (someone or something)
Sick of some continual bad or irritating behavior.I have had it up to here with his coming late to work.
Up-to-date
Modern, the latest standards of fashion.The kitchen in our apartment is not up-to-date at all.
Up to a point
Partly, to some extent.I like my neighbor but only up to a point.