When you have no idea what someone is asking you you should reply with this
girl: what time do you get off work?
guy: Fuck if I know
by OG March 31, 2004
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if you dont know what someone is talking about then this comes in handy.
hey whats the answer to this problem

fuck if i know
by mike October 07, 2003
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when someone is asking you a question that you dont know
G-"hey what happened with sarah?"

K-"the fuck if i know"

G-"well then..."
by WhiteCat November 21, 2013
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It’s when you die because you at to many tide pods after hanging out with the hoes but it’s ok because you are in a game and you just respawn, so to sum this up go fall in a hole and fuck the moon, thank you and good night
The word being defined is fuck if I know yet which mean I’m board
by Your big old fat mommy March 27, 2018
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The commonly used saying mostly used when you are studying with someone right before a major test.
Friend: What is the square root of 100?
You: Fuck I don't know.
by ArtificialDysphoria68 February 20, 2014
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Rhyming expression for use when you really didn't know something, and were maybe even the last person on earth to find out. Goes to show you really do learn something new every day.
'You mean you can't get pregnant by sharing a facecloth? Fuck my hat, I didn't know that!'
by mockschmock December 07, 2006
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