Acronym: Fuck If I Know.
It is a definitive statement used primarily by those who are tired of answering probing questions into a subject that the
user either does not know or could care less about. Usually employed in
online conversation or when trying to watch one's
tongue.
Example 1
Person 1: "
Dude, Do you know where i put put my car
keys"
Person 2: "Seriously for the twentieth time. FIIK!"
Example 2
after being interrobanged for the 18th time in the
game of 20 questions by a significant other the answers can become shortly stated as FIIK