Use a deep, raspy male voice
Add heavy distortion and slight static
Lower the pitch a little
Add a slow, creepy drawl
Emphasize words sharply and unevenly
Add a faint growl under the voice
Use a dry, hollow reverb
Clip the audio slightly for a rough meme-style sound
Make the delivery exaggerated and dramatic
Add sudden pauses between words
Layer a whispery undertone
Keep the tone menacing but goofy
Use a bit of robotic modulation
Over-enunciate key words for meme effect
Add a subtle echo on the final syllables