1.) a seemingly simple online game where the player clicks a cookie repeatedly, and can use the cookies made form clicking to "buy" other methods of making more cookies
A game that consists of a cookie that must be clicked repeatedly to make more cookies. It gives you the illusion that you are making cookies, but you are really not. Tumblr seems to be obsessed with it (around August 2013)
Tumblr user 1: OMG have you played cookie clicker yet, it ruined my life!
Tumblr user 2: What no but I'll check it out
Tumblr user 2 after playing Cookie Clicker: OMFG I CAN'T STOP CLICKING THIS COOKIE
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!"