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A sexually transmitted disease you contract after having intercourse with someone you met via Facebook.

This is a play on words combining the Klavika typeface used for the Facebook logo and the possible unfortunate consequence of hooking up with a stranger via the internets.
Guy 1 - "Damn dude, I caught something from that girl I met on Facebook"

(Loads up respective Facebook profile of girl)

Guy 2 - "Yo, you got the klavika from her??? Mildsauce."
by fbbff April 04, 2011
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