Wiktionary
a. (context idiomatic English) lavish; luxurious
Wikipedia
Fit for a King is a 1937 American film starring Joe E. Brown and directed by Edward Sedgwick.
Fit for a King, also known as FFAK, is an American Christian metalcore band from both Dallas and Tyler, Texas that started in 2007. They released two independent EPs in 2008 entitled Fit for a King and 2009's Awaken the Vesper and they released one independent LP entitled Descendants in 2011. Then, the band released three studio albums with their label Solid State Records entitled Creation/Destruction (2013), a re-recorded Descendants (2013), and Slave to Nothing.
Usage examples of "fit for a king".
It was a place fit for a king, but Akeela had apparently abused it, for there were dirty glasses everywhere and half-drunken pitchers of wine.
Little men have big appetites, and I'm told the girls here are fit for a king.
Surely it wasn't normal for a gaggle of physicians to tend to an assassin in a bedchamber fit for a king?
Furthermore, he had brought with him an entire wainload of Rostrum wine as a marriage present: a gift which some people considered fit for a King.