When someone carries their need for structure and harmony to the extreme, thereby becoming "anal" about it.
pronunciation: fung shwaynal
Jenn: "Don't tell me Susie is coming to lunch, or I'll have to pass. She actually tried to reorganize my house, my sex life, and my refrigerator on her last phone call!"
Olivia: "Yeah- you're right. She redefines fengshuinal!"