A metaphor describing the threshold of someone's fury. Rage or angst is at its pinacle when "the cup" is spilling over.
1. That makes me so angry...my rage-cup is spilling over.
2. People fill my rage-cup when they do not supply subjects in their emails.
2. People fill my rage-cup when they do not supply subjects in their emails.
by Some_Canadian October 11, 2006