A week long 'festival' surrounding a persons birthday. Typically celebrated by egocentric people who are still small children, and think their birthday of such importance that it should be celebrated with a week.
P1: "My birthday gras has started yay!"
P2: "I thought your birthday was next week"
P1: "I am so special that I need a week to celebrate my birth"
P2 (to self): "What a loser"
P2: "I thought your birthday was next week"
P1: "I am so special that I need a week to celebrate my birth"
P2 (to self): "What a loser"
by Anon7465835 March 14, 2010
Get the birthday grasmug.