1. Fesh (pronounced "Fee-ish") is a group or "school" of new starters within a new work place or group.
Also can be referred to as "Fresh meat", Fesh are simply cold hearted money stealing cretins.
It is often joked about by the "Old and wise", these being the current works men. The works men have copy-rights to use tridents, moon-shine and straw. This allows the Trident straw eating moonshine drinkers to "F**k Sheet Up".
Hey Marge, get my shotguuuun, da feeeeesh is here.
Let's reel in da feeshy bois
Hey Malfoy look, it's thaa Fesh