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
Sung-Min	sung-meen	Korean
LatİFe	-	Turkish
Francisco	frahn-THEES-ko (Spanish), frahn-SEES-ko (Latin American Spanish), frən-SEESH-koo (Portuguese)	Spanish, Portuguese
Evdokiya	yev-dah-KEE-yah (Russian), eev-dah-KEE-yah (Russian)	Bulgarian, Russian
Nico	NEE-ko (Italian, Dutch, Spanish)	Italian, Dutch, German, Spanish, Portuguese
Lindsay	['linzi]