When someone has had too much to drink and lean against the wall with their shoulder and begins to walk using the wall for support.
Tommy: Dude, Rocco had way to much beer last night.
Justin: I know. He was shoulder walling on the way to his room.
Justin: I know. He was shoulder walling on the way to his room.
by Rytha April 13, 2009
Get the Shoulder Wallingmug.