When ones mind shuts off in the winter and does nothing causing any mental/physical stress, even hanging out with friends.

Don't give a fuck about anything anymore.
Person A: "Hey why won't you talk to me and hang out with me anymore?"
Person B: "Because I'm in mental hibernation."
by Meytal Mantzur February 5, 2012
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We know squirrels hibernate, and they dig in the dirt to hide their nuts... So... The Hibernating Squirrel is when you are doing a chick doggy style in the ass(Digging in the Dirt) and you tuck your balls inside her vagina (Hide your nuts)
"yo dude did you bang that broad last night?"
"Yeah man, I gave her the ol' Hibernating Squirrel!"
by Higg9 May 26, 2008
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The time between January and August when Hokie Nation (the people that follow Virginia Tech) have no sporting events worth watching since they are a one sport school.
Student 1: "Time for Hokie Hibernation until August since we lost to Michigan the other night in football."
Student 2: "Yeah, we suck at every other sport and have never won a national championship in anything."
Student 1: "What about bass fishing?"
NCAA: "That is not a real sport.
by Hayweed January 5, 2012
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A girl who goes into hiding during winter because she hates the cold so much. You won't see her until spring comes and she's finally shaved her legs.
Ashley is my little hibernation bear from October until May.
by sly foxy December 20, 2016
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Used to describe long periods of sleep (usually 12 hours+) following a long, hard or stressful day and/or making up for lost sleep
Sorry I didn't get your message. I havnt slept for shit all week, I passed out round 10 and went into hibernation mode till 11 the next morning.
by SevenEvils September 5, 2015
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The act of taking a crap in the cistern of the toilet. The turd then hibernates for a couple of months before being broken down enough to emerge during flushing.
Person 1: OMG i just flushed the toilet and shit came out instead of water

Person 2: Dude you awoke my bear, it's been hibernating for the last 4 weeks

Person 1: You did a hibernating bear in my toilet...you're seriously fucked, we are not firends anymore

Person 2: fuck off, its the funniest thing ever

Person 1: yer i guess your right, after all i did leave a coffee bean in your kettle
by Nature Lover November 22, 2007
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Occurs during the winter when a bear, most commonly of the grizzly or kodiak family, needs to find a nice warm cozy spot to take a several month long nap. What separates this special type of hibernation from the usual kind is that this bear finds a ridiculously floppy va-jay-jay and crawls inside it for the duration of the cold months.
Tom: Hey did you see Patty walk by? It looks like she's put on about 400 pounds in the pelvic region!

Stan: I know, I noticed that as well. Then again, it's almost winter, so I bet that bear we saw in the forest the other day is getting ready for a Scottish Hibernation.
by Funky Junk in my Trunk January 27, 2009
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