Being a star wars and star trek fan here a variation from my side So this is a stab at scary laughs as well

pickUpLines = 
      Flatten[Table[
        Take[StringSplit[
          Import[StringTemplate[
             "https://allpickuplines.com/best-starwars-pick-up-lines/`1`/"][i]], 
          "\[HeartSuit]"], {2, -2}], {i, 5}]];

    kyloRen[string_] := Block[{audioOrg, audioKylo},
      audioOrg = SpeechSynthesize[string];
      audioKylo = AudioPitchShift[audioOrg, 0.9];
      Legended[
       Normal[AudioFrequencyShift[audioKylo, -200] // 
         AudioAmplify[#, 4] &], string]]

    kyloRen[RandomChoice[AllPickUpLines]]

cheers, Matt

Very nice, indeed!
This might just be my tacky sense of humour, but I couldn't resist!

pickUpLines = 
  Flatten[Table[
    Take[StringSplit[
      Import[StringTemplate[
         "http://pickup-lines.net/cute/page/`1`/"][i]], 
      "\[HeartSuit]"], {2, -2}], {i, 5}]];

kyloRen[string_] := Block[{audioOrg, audioKylo},
  audioOrg = SpeechSynthesize[string];
  audioKylo = AudioPitchShift[audioOrg, 0.9];
  Legended[
   Normal[AudioFrequencyShift[audioKylo, -200] // 
     AudioAmplify[#, 4] &], string]]

kyloRen[RandomChoice[pickUpLines]]

Cheers,
George

Very nice! But surprisingly that type of processing does not make laughing scary. So this is a stab at scary laughs:

• Original laughter
• Scary laughter

In the code below notice I overlaid the original and processed audio, in addition to other filters.

laugh=ExampleData[{"Audio","Laughing"}];
AudioOverlay[{
    AudioAmplify[laugh,7],
    AudioAmplify[
       AudioReverb[
         AudioDelay[
          AudioFrequencyShift[
              AudioPitchShift[laugh,0.6],
          -300],
         1,.5],
       "LargeHall"],
    20]
}]

CloudDeploy[ExportForm[%, "MP3"], "vkLaughingScary", Permissions -> "Public"]

CloudDeploy[ExportForm[laugh, "MP3"], "LaughingExampleData", Permissions -> "Public"]