The following moves are just Luffy's attacks that would be interesting to see in the future in One Piece. (Haki abilities are included)
What future abilities would you like to see Luffy perform?
I'm surprised you know Gum is another word for Rubber.
I'd like to see
Gum-Gum Jet Shotgun
Gum-Gum Jet Stamp Gatling
Gum Gum Jet Bell
Gum Gum Jet Fireworks
Hello, do you like Bleach?
On topic: Gomu Gomu no Hokuto no Ken; Gomu Gomu no Murder.
Gomu Gomu no Gigant Jet Storm
Gomu Gomu no Gigant Flail
Gomu Gomu no Jet Rifle
Gomu no Jet Giant Storm = raped
I whould like to see gum-gum no giant jet bazooka