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1. Nickname for someone that causes a lot of trouble, mischief, loves to fight, looks for fights, or causes someone to want to fight them.

2. something that causes problems and trouble.

3. Someone that loves motorcycles and will ride them no matter the weather he/she will always be on a motorcycle.

4. Someone that causes damage to anything he/she touches, or even gets around.
1. Havock went to the bar last night and caused a lot of trouble.

2. Freds new name is Havock because of the fight he caused last night.

3. Lets cause havock on the msr this mission.

4 Please don't cause any Havock tonight because we don't need to draw any attention.
havock by The Big Y December 28, 2007
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John Haack 

The real life gigachad, the sigma male king. He lifts all the plates in the gym and makes any girls panties wet simply by dming them one of his 10,000,000,000 memes, no matter how uptight and thotty they are he gets the coochie. He is awkward rejecting societal norms and dressing up like a filthy frank character just to outlift and imasculate every male on the planet, therefore he is the ultimate sigma male. He has the haack squat named after him.

Furthermore he is a true patriot. He blasts eminem, "now you're a man", and "murica fuck yeah" during his workouts. This contributes little to his overall chadliness and godlike abilities but it simply exemplifies his aura.
If aliens invade earth they'll go extinct the moment john haack finds out about them.
John Haack by Necrozma Beam October 2, 2021
Related Words
The cheesy flap found on the inside of the mans rectal passage. Can also be found on some females. Promotes the production of smegma. Usually sorrounded by layers of mucus and pusy fluid. Has the consistency of custard.
After the blood-orgy Roger found David's custard-smeared halack draped over his purple bit.
halack by idonteatdogs November 26, 2010
The best last name anyone could ask for. If you have this as a last name your most likely know. As the hot kid that gets a lot of chicks.
Man that guy is good looking and look at all thos girls he’s got. He must be a Haack.
Haack by LHFresh August 17, 2021
Havaska is the most unique person in the world. She is outgoing and interested in everything and everybody. Sometimes a bit chaotic and loves to go around the house without pants. She is very special and deserves a lot of compliments!
Person 1: Wow thats havaska right?
Person 2: yeah she is so unique!
Havaska by Liek_special November 23, 2021
HaJack. (v.)

1) The act of intentionally interrupting a presentation or meeting with trite comments, insignificant opinions and mindless blather.

2) Intentionally interrupting a speaker or presenter in order because you believe your thoughts and opinions are greater than that of the person presenting.

3) The female version of being bogenslammed
Person #1: "Dude. I was doing a presentation and wasn't even 2 minutes into it when this bitch just raised her hand and said she had a question. It wasn't even a question, just a series of useless comments I couldn't even follow. It completely disrupted my flow."

Person#2: "Wow. Sounds like your presentation got Hajacked, bro."
HaJack by MBANinja March 4, 2012

reek havick 

John is going to reek havick at the reunion.
reek havick by Spartanrt10 December 5, 2016