Planet Abilene

• Scattergun/Force-A-Nature
  • The scout slaps his thigh (as if riding a horse) and shouts:
    • "Whoooo!"
    • "Whoo hoo hooooo!"
    • "That's what I'm talking about!"

• Pistol
  • The scout jogs in place, checking both his neck pulse and an imaginary watch while saying:
    • "I'm runnin' circles around ya!"
    • "I'm not even winded!"
    • "Alright, I feel good!"

• Bonk! Atomic Punch
  • The Scout takes a refreshing gulp of radioactive energy and shouts:
    • "UN-FREAKIN'-TOUCHABLE!"
    • "Ya can't hit what ain't dere!"
    • "Wanananana..." [Imitating Slow-mo sound effect from The Million Dollar Man]
    • "I'm a freakin' blur here!"

(Note- Taunting with Bonk! Atomic Punch equipped functions the same way as using the primary attack button. You also remain in third-person for the duration of the drink's effect.)

• Bat
  • The scout spreads his arms and makes a quick downward motion while saying:
    • "Hey, knucklehead, I'm talking ta you! Bonk!"
    • "Yeah, why don't you come over and say that to my face, tough guy? Bonk!"
    • "Hey, is someone keeping track-a-my heads batted in? Boink!"
    • "Who wants some-a this? Bonk!"
    • "Bonk!"
    • "Boink!"

• The Sandman
  • The scout points to the sky, winds up and swings his bat with a loud "Bonk!" A successful hit will yield a round of applause.

Information obtained from TF2-Wiki