What is Dweed?
1.
a small piece or collection of food that snots over and lodges itself inconspicuously into your throat to rot. It remains there until expelled at a later time often by a violent cough or sneeze.
"Eww, I just coughed up a dweed, wanna smell?"
See
2.
Like a thing-a-ma-bob, something that you don't know what else to call it.
Can be used as a derisive term for a person in the sense that you're calling them a "thing".
What's a dweed? (Lots of giggling)
