What is chip on shoulder meaning?

The phrase "chip on your shoulder" refers to a persistent feeling of resentment and anger, often stemming from a belief that one has been wronged or mistreated in the past. It can manifest as a defensive or confrontational attitude towards others, as the person with the chip on their shoulder may be quick to feel slighted or offended. The term likely originated from the practice of placing a physical chip of wood on one's shoulder as a challenge for someone to knock off, symbolizing a readiness for a fight. Having a chip on your shoulder can hinder relationships and personal growth, as it can prevent you from moving past past grievances and being open to new experiences.