unknowntrigram

a blagger is someone who kind of makes things up as they go along. If you forgot you had a presentation you might get up in front of the people and "blag" your way through it - also called winging.

I suppose it similar to a bullshitter but they're not necessarily lying. Though it can be used a someone tying to persuade or deceive in order to get something for free

Could also refer to someone who informs someone else whats going on ie a grass, squeler etc.

OR can also refers to someone pinching (stealing) thing, ie I blagged a cd off my boyfirend