The fallacy of nut-picking occurs when an arguer selectively presents information that support a negative critique of something, leaving out items that would make for a more positive portrayal. It is therefore a variation on cherry-picking, merely switching the selection bias from positive to negative.

Here is an example:

Dad: "How are our son's grades lately?" ​Mom: "Pure Crap! He barely scraped by in English, with a C- this time."

By not mentioning that their son aced all his other classes, Mom is committing the fallacy of nut-picking.