Green’s Dictionary of Slang

completely, comprehensively.

1897		T.J. Henry Claude Garton 78: ‘[A]fter the battle is over we will unite to celebrate it right royally in a grand torchlight procession’.
1916		E. Genet letter 8 Nov. in Brown An American for Lafayette (1981) 110: All excited and royally glad over the returns of the election in the U. S.
1934		Ex-Légionnaire 1384 Legion of the Lost 177: The légionnaires were getting royally drunk.
1963		J. Rechy City of Night 196: I dont give a damn how cool you think you are, youll get Caught and get Caught royal.
1986		L. Heinemann Paco’s Story (1987) 24: He knew he was fucked-up royal.
1989		C. Hiaasen Skin Tight 177: That asshole in Queens had screwed him royal.
1993		C. Hiaasen Strip Tease 181: ‘He screwed up your roach case.’ ‘Royal.’.
2004		J. McCourt ‘Vilja de Tanquay Exults’ in Queer Street 305: I was adopted [...] / So I qualified roy’l.
2013		T. Robinson Hard Bounce [ebook] ‘He was worried we were about to do something royally fucked up’.
2023		J. Jackson Pineapple Street 67: Georgiana still played her heart out and spanked him royally [at tennis].
2023		A. Parks To Die in June 219: ‘I’m fucked. Royally fucked’.
2023		F. Bill Back to the Dirt 180: ‘You fucked up royal, Wylie. [...] You OD’d, went and scrambled my brain, killed Nathaniel’s brother and sister-in-law’.