What does NSF(!) stand for?

NSF(!) stands for "NOT SO FAST (!)"

How to abbreviate "NOT SO FAST (!)"?

"NOT SO FAST (!)" can be abbreviated as NSF(!)

What is the meaning of NSF(!) abbreviation?

The meaning of NSF(!) abbreviation is "NOT SO FAST (!)"

What does NSF(!) mean?

NSF(!) as abbreviation means "NOT SO FAST (!)"