blag /blæɡ/ BrE AmE verb ( past tense and past participle blagged , present participle blagging ) [intransitive and transitive] British English informal
[ Date: 1900-2000 ; Origin: Probably from blag 'to steal' (19-21 centuries) ]
to obtain something you want by talking in a clever way:
He blagged his way in by saying he was a friend of the owner.