wetter

noun4

1. •
   Agent noun of wet: someone who wets something as part of some process.
2. •
   A wetting agent or surfactant.
3. •
   A bedwetter.
4. •
   (slang) A knife used to commit wettings (stabbings).

   • Anywhere, anytime, I'll get him, if he's in love; I'll corn his wedding He backed his wetter, I backed my wetter but who really held that wetting? — 2019