pick at

US /pɪk æt/
UK /pɪk æt/
"pick at" picture
1.

eat food slowly and without much enthusiasm

:
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She was so upset that she could only pick at her dinner.
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He's been picking at his food all evening.
:
nibblegrazepeck attoy with
2.

criticize someone or something repeatedly, especially in a petty or annoying way

:
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She's always picking at his grammar.
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Don't pick at every little mistake I make.
:
nagcarpfind fault withnitpickgrumble at
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