Wiktionary
n. 1 (context informal English) A smooth talker, a persuasive person. 2 (context informal English) A thief or robber, one who blags.
Wikipedia
Blagger is a platform game created by Antony Crowther and released by Alligata for the Commodore 64 and BBC Micro computers in 1983, Acorn Electron, Amstrad CPC (through Amsoft) and MSX in 1984 and Commodore 16/ Commodore Plus/4 in 1985. In some countries this game was released under the name Gangster. The gameplay is similar to that of Manic Miner, also released in 1983. A sequel, Son of Blagger, was released in 1984 with a third and final title Blagger Goes to Hollywood released in 1985.
Usage examples of "blagger".
That the cons in here were basically the top echelon of the criminal world, looked up to by everyone in prison as real villains, blaggers and the like.
Brodie was one powerful man, built like the proverbial brick shithouse and he was also far above the intelligence levels of the usual blaggers Mikey came across.
Jenna had heard many stories from Nicko about the Port lowlife—the smugglers and muggers, the pickpockets and cutpurses, the blaggers and baggers, all waiting to pounce on an unwary stranger as soon as night fell.