The Pissa,
Inster and Angerapp (
Angrapa) are tributaries to the
Pregel river. These names, of
Old Prussian origin, were used by Germans of
East Prussia until 1945. According to an anecdote, the inhabitants of
Gumbinnen were embarrassed by the name (sounding similar to the vulgar word
Pisse, cognate to English "piss") and asked King
Friedrich Wilhelm IV for a name change. He is said to have replied
"Approved. Recommend Urinoco" - a
toilet pun on
Orinoco. ==See also==