1. Somebody who just likes to talk and talk and talk, though their words have no real meaning or basis in reality.
2. A person who, like a showbag, is full, to the point of exploding, of shit.
2. A person who, like a showbag, is full, to the point of exploding, of shit.
Those four days your mother was in town were a nightmare. That woman is such a fucking showbag, I just wanted to drive knives into my ears.
by McTurdle October 6, 2006
 Get the showbagmug.
Get the showbagmug. by MW September 6, 2004
 Get the showbagmug.
Get the showbagmug. by CUT THE CHEESE December 14, 2004
 Get the showbagmug.
Get the showbagmug. A bottom-dwelling fish such as Carp, or more commonly Cod that is reknown for their undesirable or unpalatable flesh and/or offal.
Fisherman 1: "I've got one!"
Fisherman 2: "What'd you catch?"
Fisherman 1: "Damn, it's just a showbag."
Fisherman 2: "That's a cod. Why do you call it a 'showbag'?"
Fisherman 1: "Cos it's full of shit."
Fisherman 2: "What'd you catch?"
Fisherman 1: "Damn, it's just a showbag."
Fisherman 2: "That's a cod. Why do you call it a 'showbag'?"
Fisherman 1: "Cos it's full of shit."
by Stefanowicz December 11, 2008
 Get the showbagmug.
Get the showbagmug. It's so totally showbag!
by Designing Anais Nin May 23, 2006
 Get the showbagmug.
Get the showbagmug. by Jazz Cola February 11, 2009
 Get the showbagsmug.
Get the showbagsmug. Just like a bag that is brought at any show off poor carnival folke, it is full of shit.  You call someone a showbag if they lie or say something you don't agree with
by Gav800 September 18, 2005
 Get the Showbagmug.
Get the Showbagmug.