Someone who starts a task they are completely capable of and does not finish it.
Person 1: Hey dude, could you work on this for me?
Person 2: Sure, I'll be done within a week!

-a week later-

Person 1: Hey, that thing done yet?
Person 2: Nah dude I forgot, sorry. I'm not really motivated to do it anymore.
Person 1: Wow, you're such a mustardfoot.
by mustardfoot August 20, 2017
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A person who will ignore working on a said task over and over
wow, my co-worker is being such a mustardfoot
by FunnyFace29 August 19, 2017
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