Overdrive is when you get hyper-active due to being over-tired, over-worked, or over-stressed. Common symptoms include slurred or incoherrent speach, laughing histerically over stupid things, and improper brain function, while in a sober state.
J: hey man how's it going?
K: whats the dealy-yo my mizzle muahhahaha, like, ur face is stupid hahahha!!!!
J: dude, you're in overdrive.
by KarlW March 19, 2007
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The paradoxical state where you're super tired, but at the same time, you've got a lot of energy.
Teacher: You're rather full of energy this morning.

Me: I'm in overdrive.

Teacher: Makes sense.
by Stupidly Sophisticated November 30, 2020
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You know you're in overdrive when you haven't had any sleep in a long time and suddenly your fatigue is taken over by this crazy ass energy that makes you act stupid.
Jeremy: "Hey, what's up KJ Can you pass me some more of that KD?"
Karl (who hasn't slept in days):"uhhh hahahaha what the fuck? haha i'm going crraaazyyyyy"
Jeremy:"DAmn man.. you must be on overdrive"
by Jeremy Wong April 17, 2006
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When you go above and beyond the usual limits.
One of my favourite examples is in Final Fantasy X where each character's most powerful abilities can only be done in Overdrive.
See overclock
1. That N2O system put that car into overdrive!
2. Whoa! He's gone into overdrive! Run!
by Betterwatchit March 18, 2006
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When you're about to cum but the woman chomps down on your cock, making you eject both blood and semen at the same time. This causes a chemical reaction in which you get a throbbing sensation running down your now flacid penis and it feels like you are ascending into overdrive.
Courtney, if you bite my cock right when I say I think I might just go into overdrive.
by Mackenzie Fountain November 9, 2018
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CONAN GRAY'S BEST SONG, STREAM IT FUCKERS xx luv u
Uncultured bitch: Hey do you have any song recommendations?

Person with immaculate music taste: LISTEN TO OVERDRIVE BY CONAN GRAY YOU UNCULTURED SWINE
by juzzycooch February 20, 2021
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Taking an automobile out of gear or shifting into neutral while on a decline in an effort to improve fuel economy.
After cresting the top of the hill, Juan shifted his pick-up into Mexican overdrive.
by keefer March 3, 2004
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