When normally heterosexual guys or girls get drunk (wasted) and accidentally make out or hook up with the same sex.
"Man, last night I got sooooo gaysted! There are photos up on facebook of me and Bertha doings shots of Slippery Nipples and making out. Do you think I should detag them?"
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!"