The sexual act in which one of two sexual partners fills their anus with Battenburg cake and then has anal sex with their sexual partner; mashing up the cake in their anus until it is a dirty mess of cake and excrement. Hence Shattenburg.
1: "Damn man this girl was crazy! She wanted Shattenburg!"
2: "No way man my girl doesn't even like Shattenburg!"
2: "No way man my girl doesn't even like Shattenburg!"
by Chercules June 3, 2014
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