Joking name for Unitarians. This "religion" is split evenly by gender, but their actions embody the lesbian spirit. Churchgoers roll up in their Subaru/Volvo wagons wearing flannel after eating large bowls of granola.
Their social action furthers the justification for "Lesbitarian". They are more than tolerant of sexual deviants, and in fact encourage it in the name of freedom and diversity.
Where is that flotilla of station wagons full of flannelshirt-wearers going?
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!"