Green’s Dictionary of Slang

superfly adj.

[SE pfx super- + fly adj.]

(US black) of people, situations, art, drugs etc, excellent, first-rate.

[US]R. Woodley Dealer 38: See, right away they want to know where he got his stuff, because they figure if the cat O.D.’d, it must have been some superfly duji.
[US]R. Woodley Dealer 72: I really did it [i.e. a painting] because at the time I couldn’t afford to buy the superfly thing I really wanted for my wall.
[US]R. Woodley Dealer 177: [of clothes] [B]lack people really like to get dressed up, man. They work hard all week, and they like to get dressed up, get superfly.
[US]Curtis Mayfield ‘Pusherman’ 🎵 Ain’t I clean, bad machine / Super cool, super mean / Feelin’ good, for the man / Superfly, here I stand.
[US]Ice-T ‘Soul on Ice’ 🎵 Donald D’s ultimate superfly ride.
L. Crosbie Queen Rat 124: He is inside listening to Curtis, [...] and his eyes glow like mellow stones at my superfly threads.
[US]D.H. Sterry Chicken (2003) 41: I watch him smooth past me with that beautiful Superfly strut.
[US]J. Díaz This Is How You Lose Her 10: The landscapes were superfly.