Mr. Dawkin’s appearance did not say a vast deal in favour of the comforts which his patron’s interest obtained for those whom he took under his protection; but, as he had a rather flightly and dissolute mode of conversing, and furthermore avowed that among his intimate friends he was better known by the sobriquet of ’The Artful Dodger,’ Oliver concluded that, being of a dissipated and careless turn, the moral precepts of his benefactor had hitherto been thrown away upon him.
There are no more uses of "sobriquet" in the book.
Show samples from other sources
Grim would be, I suppose, a sobriquet for your grandfather, based on his demeanor.
Rodman Philbrick -- Freak the Mighty
Now, it wasn’t as if I held my phone in my sweaty hand all day, staring at it while wearing my Special Yellow Dress, patiently waiting for my gentleman caller to live up to his sobriquet.