The anus... because of it's resemblance to a starfish made of chocolate. It is used more commonly in UK English than in American English.
Oi, Nigel is a bastard, I'll not be seeing him again. He tried to have a go at me Choccy Starfish.
by wyldesage March 1, 2012
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You are speaking out of your choccy starfish.

Smashed her right in the choccy starfish
by Horrorhead June 11, 2018
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