Sitzprobe (noun):

1. A seated rehearsal that merges orchestra, vocals and body microphones for the first time in the production of a musical; 2. A vaguely naughty-sounding German word that though it may seem so at first doesn't really lend itself to clever sexual innuendo and don't even think you're going to come up with the elusive and brilliantly definitive "probe" joke because millions of very talented and clever and profoundly disturbed actors and singers before you have exhausted every last possibility a thousand times over; 3. THE COOLEST REHEARSAL OF EVERY SHOW OF YOUR LIFE PAST, PRESENT AND FUTURE; 4. I'm wearing my sporty-cool-electric-lemon-boogaloo hoodie today; 5. That has nothing to do with Sitzprobe but I didn't have any other place to fit it in today; 6. CHECK OUT THE NEON STRIPPER ON THE WALL BEHIND US OUR SET IS SO FREAKING COOL!