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The act of male masturbation whereby a slice of pizza is wrapped around the penis shaft and stroked until ejaculation is achieved. Extra toppings can be added for an exotic experience (i.e. pineapple and ham = a Hawaiian pizza jacket; spicy sausage and peppers = the Guidette pizza jacket; etc).
I am so hungry, but that guy just used the last slice as a pizza jacket!
by pizza jacket April 23, 2011
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