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The combination of the words ex and sexy meaning that you have a sexy ex girl/boy friend
Guy 1"Your girlfriend is sexy!" Guy 2 "thats my ex!" Guy 1 "make that exxy!"
by Boxie047 October 18, 2009
Used when something is over the top expensive.
Jan: "Man that shop is exxy but I love the clothes!"
by Yana A October 24, 2006