Skipping protocol and taking matters into your own hands as a result of being treated unfairly and reaching one's tolerancelevel.
If my company changes my pay plan one more time, I'm going rosa parks on my boss. If I catch my ex-husband opening my mail one more time, I'm going rosa parks on him in court.
The reason why African Americans are now able to sit at the front of the bus
(African American sits at front of the bus)
bus driver: sir can u move to the back of the bus
African American: It’s not the 50s anymore dumbass, were now able to sit at the front of the bus ever since Rosa Parks stood up against that bus driver in Montgomery
bus driver: oh right, damnit