best effort 

Working to one's ability, rather he or she fails or succeeds.

Put in your best effort.

best effort by Davey June 5, 2004

best effort 

giving your best effort is when you try your hardest.

mom: you got an F on this paper!
son: i tryed my hardest!

best effort by Josh June 3, 2004

best effort 

To make ones greatest attempt

Yo im going to make my best effort to save my money for a new car.

best effort by KoVaH November 27, 2003

best effort 

Giving all that you can in a given situation, but always failing to meet some one else's standards

Try as I may, my best effort was not good enough for my girl friend, so she left me, stupid cunt

best effort by Paul June 6, 2004

best effort 

good enough.

Was that your best effort?

Nope, but good enough.

best effort by Purplesheep November 30, 2003

best effort 

No effort at all.

I'll make my best effort to meet this deadline.

best effort by James Awkwards June 7, 2004

best effort 

what losers say they did when they "gave it their all." only in the lexicon on losers.

dad: yeah you lost the game and embrassed the family son, but you gave it your best effort...
son: i know dad, thanks.
dad hits son

best effort by daftdon November 25, 2003