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1.
The real and somewhat embarrassing name for the Shittish village of Sipoo, in Finland.
Shitpoo is a xenophobic little village with a high rate of inbreeding, like Tammisaari.

In english, Sibbo means Shitpoo, an anal retentive Shittish township located in the Finnish backwoods.
by Eva Asplund January 17, 2008
 
2.
A mix breed of a shih-tzu and a poodle.
Your shih-tzu and my poodle just fucked, they're gonna have a shitpoo.
by Chris December 19, 2004
 
3.
the most comfortable poo you ever had, a term of endearment
Goddamn, I love you shitpoo.
by Puko April 18, 2008