Svendsen Share definition Flag A Svendsen; The sweat between your balls and your asshole. Commonly referred to as taint sweat or ass butter. Usually has a salty or shitty smell. " Dude I've been playing ball all day my junk is all svendsen." Svendsen by BeallBad August 16, 2011 0 0 Get merch Get the Svendsen mug. Buy Now — $32.95 See more merch