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.

See also: pull, sock, up

See also:

nice going
Nice going!
good going
keep a cool head
keep a level head
knock (one's) socks off
knock socks off
knock someone's socks off
blow (one's) socks off
blow/knock somebody's socks off

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