Yes, dugouts get clogged and nastied up in no time. Not to mention they are metal as well.
You are smoking shagg weed though. That tastes like shit no matter how you smoke it. I'm guessing it's 75% the weeds fault for the bad taste, and 25% of the nasty metal bat you are using.
Get better weed and keep that thing clean. They are easy to clean but get messy and gross tasting in no time.
I suggest a small glass chillium. They are almost as small as a bat but taste waaaaay better and you can pack more than one hit in there too. Not to mention you won't get a mouthful of ash like you do a bat.