That's the sound a beeber makes when you stune someone with it. But since beebers are fully automatic you'll never hear it just once. At minimum, it's going to sound more like this:
Prrpw-prrpw-prrpw!...Prrpw--prrpw--prrpw--prrpw!
Its the sound Pepe males when engaged in the act of lovemakoing
Cool thanks!