The feeling of gloom and depression following a particularly enjoyable day.
"I'm really fungover at work today after we built snowmen yesterday"
by euzie February 9, 2009
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A super bad hangover. Similarly to 'fugly' or the combination of 'fucking' and 'ugly'...'fungover' is the combination of 'fucking' and 'hungover. This shortened version takes out the extra word and thus reduces the amount of work it takes to express just how bad the morning after is.
"Holy shit I'm fungover."

"I'm so fungover I think I might die."

"Someone make me a sandwich, I'm so fungover I don't think I can move."
by luxlady06 November 20, 2011
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The state of being so full and hating yourself after eating so much food you can barely walk.
Sherry, how 'ya feeling today?

Oh James, I'm so fungover
by Wahl-EE November 27, 2015
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When you didn’t drink the night before but you still went out and have symptoms of a hangover
“Dude, I’m so fungover. I was out till 4 am and I feel like I’m dying
by Loscoo October 8, 2023
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