Idioms for daily use (U)

Under your skin
If someone gets under your skin, they really annoy you.
 

Under your thumb
Someone who is manipulated or controlled by another person is under his or her
thumb.
 

Uneasy lies the head that wears the crown
This means that people with serious responsibilities have a heavy burden.
 

Unwavering loyalty
Unwavering loyalty does not question or doubt the person or issue and supports
them completely.
 

Up a gum tree
(AU) If you're up a gum tree, you're in trouble or a big mess.
 

Up a river without a paddle
If you up a river without a paddle, you are in an unfortunate situation,
unprepared and with none of the resources to remedy the matter.
 

Up for grabs
If something is up for grabs, it is available and whoever is first or is successful
will get it.
 

Up in the air
If a matter is up in the air, no decision has been made and there is uncertainty
about it.
 

Up sticks
(UK) If you up sticks, you leave somewhere, usually permanently and without
warning- he upped sticks and went to work abroad.
 

Up the ante
If you up the ante, you increase the importance or value of something, especially
where there's an element of risk as the term comes from gambling, where it
means to increase the stake (the amount of money bet).
 

Up the creek
If someone or something is up the creek, they are in real trouble. 'Up the creek
without a paddle' is an alternative, and 'up shit creek (without a paddle)' is a
ruder form.
 

Up the duff
(UK) If a woman is up the duff, she's pregnant.
 

Up the spout
(UK) If something has gone up the spout, it has gone wrong or been ruined.
 

Up the stick
(UK) If a woman is up the stick, she's pregnant.
 

Up the wall
If someone goes up the wall, they get very angry.