IPA: /ˈdrɛn.tʃər/
KK: /ˈdrɛnʧər/
A person or thing that soaks or saturates something with water or another liquid.
The heavy rain turned the garden into a drenching mess, making the drencher work harder to clear the water.
Drencher → The word originates from the verb 'drench' (from Middle English 'drenchen', meaning to wet thoroughly) combined with the agent suffix '-er' (meaning a person or thing that performs an action). A drencher is something or someone that thoroughly wets or soaks.
Think of someone or something that 'thoroughly wets' — that's what a drencher does.