straighten up
Beginner (A2)informal
To sit or stand up straight, to make a room look tidy, or to start behaving better.
"Straighten up when you sit at the computer — slouching is bad for your back."
Hear it in context
The PRANK WARS on The 110 Acre Farm have Begun! 😂
Life of Tom · 28:35
Straighten up.
The PRANK WARS on The 110 Acre Farm have Begun! 😂
Life of Tom · 28:35
Straighten up.
Hour 4: Callers
ESPN College Football · 10:30
Straighten up, brother.
TXi6WaKEzKA
· 97:25
just straighten up his back.
30 Minutes of Meryl Streep at Her Best
TheEllenShow · 25:27
You straighten up and fly right.