Getting as shit faced as you possibly can without passing out, blacking out, or throwing up. Basically having the best time possible, while still being classy, with as much alcohol as possible. Often done on the regular on college campuses.
Person 1: Dude, do you have class tomorrow?
Person 2: Nah man.
Person 1: Then let's go get shmammery tonight!
"Shammered" is another way of describing someone who appears or is drunk.
Derived from the slang/phrase "Hammered," which also describes someone who is drunk, and the word "Shot," which, in drinking terms, describes some who is totally piss drunk "Shot," and is acting like a compete idiot because of it; therefore his mind is "shot." (Gone) (Done) (Finished) (Temporarily Fried)
Oh my god, Dom that guy is totally f*ucken "Shammered." He doesn't even know what he's doing or saying.
An expert in the field of appearing very busy while actually doing as little work as possible. A trait usually associated with junior enlisted in the Army.
E-7: Tell SPC Snuffy to stop being such a fucking shammer
E-5: I've tried but he always says he's busy with something for the FirstSausage
ALWAYS WANT ONE HE IS CREATIVE AN ARTIST A HILARIOUS MAN AND LIKE TO HAVE FRIENDS HE WILL KEEP YOU HAPPY AND WILL ALWAYS BE YOUR FRIEND IF YOU HAVE ONE NEVER LET GO