Fundus

The part of any hollow organ (such as the uterus, appendix, gallbladder or eyeball) that is farthest from the opening.

Bro #1: How'd it go after we left last night bro? You and your lady work things out?

Bro #2: Yeah bro, it went better than expected. It was all just a misunderstanding. The night ended with me giving her lady fundus a stretch.

Bro #1: Oh that's good to hear bro. Clear communication is so important.

Bro #2: Yeah, thanks for asking bro. She really means a lot to me.