Japer

From the noun 'to jape', as in, 'to joke.'

1. One who enjoys the japes.

2. An expert in the art of japing.

1. Ollie said he's going for a bath, but we all know that he's really going for a wank. What a japer.

2. Did you see the Dark Knight yet? Heath Ledger, what a japer.

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