Sitzfleisch

Noun

Sitzfleisch

1. (uncountable) The ability to endure or carry on with an activity.
   • Sitzfleisch: a term used in chess to indicate winning by use of the glutei muscles--the habit of remaining stolid in one's seat hour by hour, making moves that are sound but uninspired, until one's opponent blunders through boredom.[1947, Frank Vigor Morley, “My One Contribution to Chess”, in Chess Notes, Faber & Faber
   • He never dallied with the image, beloved of the Renaissance, of the lean and shrunk-shanked scholar, possessed of infinite Sitzfleisch and inured to pain.2003, Roy Porter, Flesh in the Age of Reason, Penguin, published 2004, page 203
2. (slang) A person's bottom; the posterior.
   • Just as he was snorting and puffing like a grampus, I chanced to observe a quite formidable scar on his Sitzfleisch. With an apology for the personal nature of the question, I asked if it was a war wound of some kind.1987, The Lexington Reader, page 530