Literally: “speedy poop” / meaning: diarrhea
Disclaimer: Better not read this before lunch. To all of you who are still with me, I will take you on a journey to the wonderful world of German diarrhea… because there are plenty of great expressions to discover!
To begin with, the standard German term for what many people call Flitzekacke is Durchfall; which is a doozy in and of itself, translating to “through-fall.” Apart from that, maybe the most common term is Flotter Otto (“fast Otto”), who also has a sister called Schnelle Kathrin (“fast Catherine”). Dünnpfiff is another lovely choice, which can be translated to “thin blast of a whistle.” When things get a bit more serious, you have Scheißerei (“shittery”). But my personal favorite must be Sprühwurst—which means something like “sprayed sausage.”
By the way, in case you have been a bit too curious about your travel destination’s local cuisine, the proverbial “Montezuma’s revenge” also exists in the German language (Montezumas Rache).