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Standing in front of a full body mirror while masturbating and cumming on the mirror so that it looks like you are cumming all over yourself. On your last 3 strokes, you should say 'Beetlejizz! Beetlejizz! Beetlejizz!'

This is, of course, based on the popular Winona Ryder movie 'Beetlejuice'.
Josh was trying to pull off the Beetlejizz in his room but his mom walked in while he was saying 'Beetlejizz!' for the 3rd time and ended up cumming all over her.
by jeffreybruce June 05, 2009
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