The state of anticipating or expecting sexual intercourse from a social encounter, be it a date, a party, or a booty call. It describes a period of optimistic waiting that is just shy of a sure thing.
A: Girl, you gonna give him some?
B: I don't know, but he's sexpecting.
On the ride home from that date, the sexpectation was killing me!
Just because you sexpect something doesn't mean you're getting it.
A door wall is a sliding-glass door or patio door. The term is yet another example of banal Michigan vernacular, where in the residents latch on to company names, trademark names, marketing terms and product names from local companies. The terms become embedded in the local vocabulary and eventually become accepted as actual valid words and phrases. In this case the term comes from Wallside Windows in Taylor, MI (a large window manufacturer), where 'door wall' is their created word for sliding-glass door.
"Bob! John's gonna bring over them doorwalls from Wallsides on Tuesdee afternoon 'round two-thirty. Get 'er done!"