Senns is a common abbreviation for the Sennheiser brand of quality headphones.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

That Damn sticky stuff on the side of a toilet that has not been cleaned for about two millennia. Set in it actually changes the chemical composition of the toilet and the entire toilet then can be classified as a senn. Cleaning just one of the sides of the toilet is not good enough to remove senn, the entire toilet must be cleaned using a power washer using pure bleach as the liquid and a pressure slightly higher then the center of the sun.

The part of your toe that you stub.

A Senn ( Senner ) or a dairy maid , even holder (bairisch) Älpler (Swiss), in Carinthia also Brentler called, is a shepherd or Hirtin, or the mostly on a Alm (Alpweide), also Senne called that protects cattle from other farmers (mostly only during the summer) and processes their milk into cheese and often butter .