What is Sull?
1.
Teachers who will first fail there kids and then eat them afterwords.
(Usually females but no one knows for sure ;)
Girl: I failed the test again.
Boy: Sull?
Girl: Yup.
See
2.
To be in a distressed or perturbed mental state.
Similar to Upset, annoyed and pissed off....
I heard what that man said, and it made me sull.
I was standing in line, and three hoe's cut in...we were all sull at the back of the line.