When you take a hit off a pipe/bong/blunt with marijuana in it and in the same breath inhale from a cigarette and then without exhaling take a shot of hard liquor then exhale all the smoke after swallowing.
Dude, my friend was totally messed off some mad hatters last night.
by FoeHammer December 4, 2005
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The Tea Party movement. Specifically the more radical ones that think there is a communist plot and a threat to the democracy to the country. They wear weird hats. They have insane conspiracy theories. They are loud, provocative, and in coherent... like the Mad Hatter in Alice in Wonderland.
Glenn Beck is a Mad Hatter.

The Tea Party is filled with Mad Hatters
by osirica March 11, 2010
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A sex game that is played with two or more people. The rules are simple, while in the middle of a sex act one person, who will play the part of the mad hatter, yells "Change places!" Everyone then must rush to switch positions and or partners. The same position cannot be used twice with the same partner. This is a reference to the tea party scene in the Alice in Wonderland book.
John and Cindy liked to play mad hatter on Saturdays to spices things up.
by Lofar January 7, 2014
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1) A term commonly used by players of games like Call of Duty or Grand Theft Auto to insult players of the F2P Team Fortress 2. It mocks how much of the game and it's economy revolves around hats, and how almost everyone who plays it wastes money and time bartering for the rarest hats. They would use it to insult players of TF2, because TF2 is widely regarded by players of other, more mature FPSs to be "immature" and "all jokes and references". This is because a lot of the game is exactly that: Puns, jokes, and references to other games made by Steam. This would make it seems ridiculous in comparison to other games with more of a story line, and would make anyone who plays it seem like someone with "no taste in games"

2) Another term used by players of the game to describe other players that have a plentiful supply of hats, and many that are rare. This, in contrary to the other definition, would be used as a compliment by those who only have the Gibson to honor those that have everything from the store-bought "Modest Pile of Hat" to the envious "Pyrovision Goggles"
1) Andy: "Hey, you see that Adam guy over there? He's a Mad Hatter."

Drew: "What's that supposed to mean?"

Andy: "It means someone plays that one game, Play Fortress 3 or whatever. You know, the one with jokes and hats?"

Drew: "Oh yeah, that stupid game. I'd rather stick to GTA V, man! #YOLOSWAG360NOSCOPE420BLAZEIT man!"

2) MustacheManC2DaK: Hey, look at that ArisenJesus guy! He's a Mad Hatter! He could trade away fifty Pyrovision goggles and still have too many!"

HyperactiveNOtato: Really? I wonder if he'd give me a Anger...

MustacheManC2DaK: It's not happening man, give up on the dream!

HyperactiveNOtatoL Ok...
by HyperactivePotato March 27, 2014
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The act of defecating on your partners head whilst they are sleeping. Upon waking, the person will notice the steaming turd and immediately become mad - hence the term "Mad Hatter"
Sharlene really annoyed me by not giving me head last night, so I dropped a Mad Hatter on her! Looks like I wont get head tonight either !
by The St Albanz Hatter January 3, 2010
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While a man lays on his back on the dining room table as if he is the centerpiece at a tea party, a woman comes up and puts her vagina on his head while another man tea bags the first guy while shoving a cupcake in the girls face.
Man, last night at the tea party, things got so crazy "the mad hatter" showed up.
by Thegang2 December 26, 2013
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In this situation, a man would be in the process of getting head from his Partner, while he is standing and she is on her knees. Right before ejaculation the man would pull out, cum in her eyes, sit on top of her head and drop a deuce.
Last night I picked up this ho at the club and when she was giving me head I pulled off a mad hatter.
by 1TRUTH April 5, 2008
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