A devastating sadness- usually used to describe rejection.
Eg.
“Urban dictionary has decided to not post your definition”
“Big Sad!!”
extreme or large amounts of depression
I am not feeling well today, I am big sad.
a synonym for the Great Depression
The Big Sad was a severe worldwide economic depression that took place mostly during the 1930s, beginning in the United States.
a cooler way of saying that your depressed
guy 1:i have the big sad
guy 2:...
when regular old sad is just too small
"Son, I have something to tell you."
"What is it?"
"Your aunt passed away."
"BIG SAD"
The big sad is a mild term for "The Great Depression"
Teacher: All right class, turn your textbooks to page 69. We're going to learn about the big sad.