Luffy:
Gum-Gum Mallot; Its gum-gum axe, except he uses both arms in a double fist
Gum-Gum in your Bum-Bum; He kicks someone in the ass.
Zoro;
Beatle slash; Its kind of Onigiri mixed with that crab move.
Tackle rush. He hugs himself, aligning the swords with his forearms and then tackles his opponent
Sanji;
Gullotine kick. its a jumping scissor kick to both sides of the head
Usopp:
Impact star: He shoots an impact dial at his enemy
Chopper;
Sakura Blitz: Uses horn point to toss someone in the air, then hits them in the air with strong point
Robin:
Triente wedgie; Wedgie to 30 people