Green’s Dictionary of Slang

1. excellent, first-rate.

1859		G.A. Sala Gaslight and Daylight 18: His creamiest jokes are met with immovable stolidity from the persons present.
1885		Bulletin (Sydney) 4 Apr. 18/1: Smacking one’s lips over such creamy intelligence as this, inclines us to pity the desert lives of those great statesmen who urge that they never, by any mischance, read the papers.
1894		Mirror of Life 17 Mar. 15/2: [US speaker] ‘It’s a creamy scrap’.
1896		W.C. Gore Student Sl. in Cohen (1997) 13: creamy Very nice; ‘rich’.
1953		F. Paley Rumble on the Docks (1955) 92: That’s what you call a creamy job!
1961		F. Kohner Gidget Goes Hawaiian 55: He’s absolutely creamy.
1969		‘Iceberg Slim’ Mama Black Widow 13: It’s simply creamy to see you.
1989		R.G. Barrett Boys from Binjiwunyawunya 144: ‘I hope everything suited you.’ ‘Couldn’t have been creamier’.
1992		R.G. Barrett White Shoes 94: Things couldn’t have been creamier.No more Annie.
2000		J.J. Connolly Layer Cake 4: It gives me [...] the pick of some very creamy gaffs to plot up in for six months at a time.

2. damp with vaginal secretions.

1884

Randiana 126: My hands were well employed frigging the creamy cunts of Mrs. Levison and Gerty.

3. of a woman, very attractive.

1914		Ade ‘The New Fable of the Aerial Performer’ in Ade’s Fables 199: She looked very creamy to Bob [...] He liked to tow something that would cause the Oyster Forks to pause in midair.
1971		B. Short (con. 1940s) Black and White Baby 276: We were such snobs in high school, so club-conscious [...] Our slang—corny, mellow, solid, killer-diller, and creamy (‘That fine creamy chick...’).
1996		J. Cameron It Was An Accident 167: Real creamy bird.
2000		J.J. Connolly Layer Cake 5: We were introduced at the wedding reception of Clarkie’s creamy younger sister.
2011		J.J. Connolly Viva La Madness 64: Sonny told me [...] to go and find myself a friendly sauna and punt for the deluxe polish off a creamy brass.

4. sophisticated, privileged.

2008

R. Price Lush Life 66: The creamiest of college boys wind up giving you a thousand-yard stare that could bore through a mountain .