bum

Ask for and get free; be a parasite.

Be lazy or idle.

“Her son is just bumming around all day”

Person who does no work.

“a lazy bum”

A person who is deemed to be despicable or contemptible.

“throw the bum out”

A vagrant.

“he tried to help the really down-and-out bums”

The fleshy part of the human body that you sit on.

Of very poor quality; flimsy.