Suffering from can't be arsed syndrome means you can't be arsed to do anything. A general lack of
motivation to do
basic tasks. Taking it
easy. Avoiding heavy work. Finding day to day tasks cumbersome. Used in an specific instance as an out of the ordinary day for someone who is usually hard working.
dude 1: I am suffering from can't be arsed syndrome
today.
dude 2: Why? What's up?
dude 1: I just have no motivation.
dude 2: Are you
tired?
dude 1: Not really. I just can't be arsed today.
dude 2: I know what you
mean.