one legged man in an ass kicking contest 

Attempting to accomplish a goal (kick ass) with some possible success only to wind up falling on your own ass. Having to try harder than the average person to reach the same success. A repeated accomplishment followed up by repeated embarrassing failures.

Melvin was a good looking guy but his halitosis made the women gag, he was about as successful with dating as a one legged man in an ass kicking contest.

one legged man in an ass kicking contest by EmmasTatDad July 24, 2014

busier than a one legged man in an ass kicking contest 

To be so busy, that you will never finish your job

"There is no way I can finish that too!" "Im busier than a one legged man in an ass kicking contest!"

busier than a one legged man in an ass kicking contest by Frainslug November 5, 2005