Related Clues:

• Make a workplace uncomfortable
• Constantly annoy
• Be nitpicky
• Pester persistently
• Fester in one's mind
• Continue to irritate
• Be a fussbudget
• Bother big-time
• Bust chops
• Cause irritation
• Get on the nerves of
• Heckle, e.g.
• Cause lasting resentment
• Pester or annoy continually
• Bother and annoy continuously