Bloud can be in the form of a verb, adjective, or noun depending on it's context in a sentence. In general the word means fat, slovenly, or lazy. A Bloud is a nasty, lazy fat person. To be "blouding around" is to be pushing your way around people like a big fat person would do. If you're "bloudy" you are fat and nasty.
Dude, stop being such a bloud.
Look at her, blouding around.
Those pants make you look bloudy.