Stop Touched Function From Being Continuous?

While the tool is activated and plays an animatiion, if the uppertorso or lowertorso is touched, then the enemy will take damage. There are no errors, and this works fine. The problem is, after the tool is activated, the uppertorso and lowertorso continue to deal damage on touch. Please fix this:

local tool = script.Parent
local animation = Instance.new("Animation")
animation.AnimationId = "rbxassetid://1119832753"

local debounce = false
local hit = false

tool.Activated:Connect(function()
if debounce == false then
  debounce = true
  print("The cheese has been clicked!")
  local plr = game.Players.LocalPlayer.Character
  local trackanimation = plr.Humanoid:LoadAnimation(animation)
  local touchedConnection = plr["UpperTorso"].Touched:connect(onTouch)
  local touchedConnection = plr["LowerTorso"].Touched:connect(onTouch)
  trackanimation.KeyframeReached:Connect(function()
  end)
  --script.Parent.Parent.barfnow:FireServer()
  trackanimation:Play()
  wait(0.1)
  script.Fart:Play()
  wait(1.9)
  debounce = false
end
end)

function onTouch(part)
  if not hit and part.Parent:FindFirstChild("Humanoid") then
    hit = true
    local humanoid = part.Parent:FindFirstChild("Humanoid")
    humanoid:TakeDamage(game.Players.LocalPlayer:FindFirstChild("leaderstats").Calories.Value)
    wait(2)
    hit = false
  end
end