I heard that as "I show you xx". One guy is flying with his head up, the other one talking most is monitoring with his head in the instruments, and helping the pilot flying getting confident data.

Remember they're driving 1970's technology, redundant everything, and they all grew up flying "steam gauges", where the culture includes tapping on the glass to make sure the needle didn't stick. They want to compare every sensor output for sanity so they can disregard one if needed.

This vid is also the source of cockpit audio for the FSim shuttle simulator game if you like this stuff.