After a long night of partying and you wake up delirious, thinking to yourself, "How much did I drink?". So you make a dry run through the house counting the empty liquor/beer bottles .
Woke up drunk. Had no idea what I had drank so I made a dry run through the house, WOW I had tequila!
The bump, bruise, scratch or cut you find on part of your body after a heavy night of partying but you have no recollection of how you got it. Its a Unidentified PartySore
Look at this huge UPS on my thigh. I got it last night but have no clue how.