Simply put, an attractive girl can be referred to as a hammer. If the aforementioned female is unbelieveably attractive, she can be called a jackhammer or sledgehammer, accordingly. A place where several hammers coexist can be refered to as Hammer City, or Hammerville, USA.
Your sister is a hammer, but your mom is a sledgehammer (usually said with a pelvic thrusting motion).
You gotta go with us to that bar next week, it's Hammer City over there.
I've never seen her before but she must hail from Hammerville, USA.
1. Noun; A present tense word uncommonly used to describe the act of binge drinking. More commonly used as "Hammered"
2. Noun; A word shouted to call upon Mjolnir, Thor's hammer.
Used during times of distress and discomfort.
Subsequently, if shouted by a person who is righteous, a hammer will fly towards your open hand allowing you to lay the smack down and smite everything around you.
1. Frat fag: "Hey man, you going to get the keg? We're getting hammered tonight."
2. Thor: "This is so good," (coffee) *smashes cup on the ground* "ANOTHER!"