1) Term used to describe or acknowledge any female you would not associate with under normal conditions.
2) Term used during social gatherings to rate female attendees.
Guy 1: Dude, that girl is at least an 8
Guy 2: not me, I'll give her a 2...Tall Cans that is!
A 24oz can of beer. Also known as a "tall boy"
Go to the liquor store and get me a tall can