try (one's) level best(redirected from try somebody's level best)
try (one's) level best
To try as hard as one can; to try one's best. I'm just not good at math, so believe me, a B- in Algebra means that I've tried my level best. No, you're not the star player on the team, but you always try your level best, which encourages the rest of us to do the same.