An eye infection. Or waking up with a ton of sleep on your eyes.
"Dude what happened to your eye?" asks Nick

"My contacts are killing me!" says Pete

"Have you seen a doctor about your retinal clap?" replies Nick
by Swift_Nick_Cudd June 18, 2011
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Why does my eye hurt?

Dude, it looks like you got retinal clap.
by ThatDaltonDude December 28, 2010
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