Definition 1: An above average looking male/female percieved as a 9 or 10, who couples up with a below average looking male/female, percieved as a 4 or a 5.
Definition 2: An analogy to explain how an unattractive person couples up with an attractive person. The unattractive person usually "shops" and "buys" his/her boyfriend/girlfriend at Walmart, but happens to get lucky and hit the Macy's one day sale.
A small window of opportunity you can walk into a store and take at your own risk what you want without paying ; e.g. after a natural disaster or social unrest or war. The sale does not have to occur on any specific day, but it requires certain conditions. It is illegal in almost all circumstances, with the exception of some areas which have been devastated by a disaster and for which taking certain items is necessary for basic survival.
The act of shitting on someones chest and then fucking them. When this is complete you amaze them with another everything must go sale, and then you puke on their face just before you shoot your load of hot sticky cum all over the puke.
I was fucking this bitch last week and she made me take her to a "2 Day Yard Sale". I shit on the dumb cunts chest and then fucked her brains out. Just when she thought I was finished I puked all over her face and then busted a nut on my still steaming partially digested food.