1. something that stinks both literally and in the metaphoric sense.
2. dried up fecal matter that accrues on one's anal region or cavity.
3. see: dingleberry.
4. that of which is not good, bogus, lame, or any other undesirable state of being.
Ray: "Dude, I just got fired! That's SO dagus wafer!"
Mark: "Oh, man... that totally sucks, dude. I'm bummed for ya. Your boss is beyond dagus wafer for doing that."