Although I didn't think of the expression myself, i am more commonly using it in my everyday English.... why? Because the people in which I use the term to describe truly deserve it. Its like the word was invented just for them.
Heres my question to you FFers. Know any dirtbags? Don't say any names, but anyone that you see often or not, just a complete moron? You have to have had contact with them, visually. No interwebs peeps. I just want to hear some funny stories about idiots.
And trust, I have 3 at my school, so every other day or so I can update you with stories, or your money back.....
Dirtbag is an often heard expression in the USAF where it has come to replace the less PC term of 'shitbag'. A dirtbag is in essence, a shirker of responsibility and a person whose personal character is such that you wouldnt trust him to lead his own bathroom break let alone other people. Easily identified by a disheveled appearance to include but not be limited to, unbrushed teeth, ungroomed hair, an aura of miasmatic aroma and an all around shifty countenance.
Yea there are numerous people that fall under that genre at my school.:)