These days felcher has a more common meaning, the art of felching has come a long way since sucking cum out of a random asshole, it can now mean you're a bottom feeder of any type.
"Stop felching my beer you felch"
"Hey felcher" (Yelled out to bum collecting money at train station)
"Dont let felch felch off a felch" (Meaning double felching is a big no no)
A pawn in the game of life, easily controlled or emotionally manipulated to the point of submission on every mission
"You got snupped hard on that occasion, why dont you have a cup of shut the fuck up mixed with concrete, you soft piece of shit"