A P-Shake is a combination of a milkshake and Pizza. Mikey creates the P-Shake in the episode It Came From The Depths. Mikey made the shake because the turtles love milkshakes and also love pizza, so he thought combining them would be great. The turtles thought it looked disgusting from the start, and Mikey spit it out when he first tried it, though he did drink the rest afterwards.
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