pull up (one's) socks

To make a redoubled effort; to make a sincere attempt to improve. After that abysmal grade on my midterm exam, I'm going to have to really pull up my socks if I want to pass math this year. John, if you don't start pulling up your socks, we're going to have to give your job to someone else.

Common Names:

Name	Pronounced	Usage
Baillie	['beili]
Jami (1)	JAY-mee	English
Sawney	-	Scottish
Tajeddigt	-	Northern African, Berber
Maggie	MAG-ee	English
Rolf	[rɔf]