To be called ‘pud’ is to be called a lazy and/or weak person. ‘Pud’ is someone who sits on the couch all day and does nothing, they can also be that person who doesn’t put much effort into anything.
Girl: Hey you pud! Get off the couch.
Guy: Why are you so mean.
Girl: Because you’re being lazy and need to get up.
Is an individual that sits around doing nothing day in and day out. Overtime he becomes lazier and performs less and less. Best described as an object that doesn't move, staying stagnate and stuck in one period of time forever.
"Did you know that Robert lives in a shack and still has no job? He is such a pud just stuck in one place forever."