A descriptive word used to relate to someone not particuarly picky with their selection of sexual partners. They only reject partners with particuarly bad traits or blemishes, much like a vegetable picker only throws out the most disfigured potatoes.
Dude 1: Hey, that girl is so hot
Dude 2: Man shes fairly average
Dude 1: Where's my shovel? I am going vegetable picking
Girl 1: Girl 2 is picky about who she sleeps with but, Girl 3....COMPLETE Vegetable Picker