Difference between Lazy Bum & The Slacker?

What's the difference?

Bump

A slacker isn't necessarily lazy, they simply avoid work and effort. The lazy bum isn't lazy just in work, but in many other things, like exercising. For example, Garfield is a lazy bum, but not a slacker, as he has no work to do. Mordecai and Rigby are slackers, but not lazy bums, they simply want to get out of work.

I hope that helps