The story
From Uriah Heepish + -ly: From the Dickens character Uriah Heep, noted for his cloying humility, obsequiousness, and insincerity, the stereotypical yes man.
Etymology from Wiktionary, CC BY-SA 4.0.
Uriah Heepishly
Today it means: In a cloying, insincerely obsequious manner. Full definition →