Eat bird
You say this when you're flipping someone off and you wish they'd swallow your finger like a dumbass.
He flipped her off and said, "Eat bird!" like he was trying to get her fired.
During the fight, he yelled, "Eat bird!" and then threw a punch.
When his friend made fun of him, he flipped him off and said, "Eat bird!" like it was a battle cry.