bottom nug

1. (n)- a small piece of a Cannabis flower that just covers the bottom of a pipe to prevent pull-through
2. (v)- to place a small piece of a Cannabis flower at the bottom of a bowl

1. "To smoke this shake in my bong, first I have to find a bottom nug."
2. *weed pulls through into mouth* "Gross! Didn't anybody bottom nug this?!"