A term used to describe a hail of bullets. In effect the bullets "rain" down on the person. Used mainly to describe executions and not actual shootouts. (commonly used by Jamaicans)
IF you don't do it black rain mightfall on you and your family.
When some one goes into the bathroom stall next to your stall and sticks the ass over the divider and procedes to defecate on the person in the next stall.
John couldnt move when the black rain started to flow from above him at the mexican resurant.
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!"