the day after getting really high, and you have a marijuana hang over.

not being all there the next day after consuming a lot of THC
to get over "the fog" exercise, take a warm bath, drink water until you're 100% normal
by Katlinn January 5, 2012
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Dogging with the fog lights of your vehicle switched on.
'Are they dogging over there?'
'Nope, their fog lights are on, they're fogging'
by Mattz00r March 11, 2017
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Geordie for 'First'
Nee keepers, it's fog man back
by alansdeepbath October 20, 2008
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related to fob but directed at puns hindus and other brown people. literally means "Fresh off the Goat".
"EW! Look at that fog with all that curry!"
by barney December 13, 2004
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Prison slang for cigarette; mostly heard in Baltimore.
Aye yo, you got a fog?!
by C_1 March 30, 2010
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FOG is short for Fit Of Giggles, it is used when chatting online or texting. This is an alternative to LOL, because LOL was so 5 years ago. This is used when you are ACTUALLY laughing out loud and cannot stop. It is also more outrageously silly than LOL.
that guy had me in such a FOG
by LaurelFoggyT September 9, 2009
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