To have sex with someone. Can also be used in the phrases "going to vietnam" or "went to vietnam."
Dude, I totally went to vietnam with that girl last night
by Your Pleasant Nightmare April 22, 2011
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.verb;
1. A state of dancing deadlock.
2. A situation where neither party in a dance off can gain an advantage.
3. A painstaking draw or stalemate.
Tom: Damn dude, what took you so long to get here?
Mike: Well, you know how Katie has been gaining a few pounds since we started going out?
Tom: Yeah, so how did that make you late?
Mike: Well she's been in denial about her new found fatness. She tried to ram her ass into her skinny jeans and got stuck. She was doing a dance to try and get them back off for fifteen minutes, it was like a disco vietnam.
Tom: Guess that would explain the hoodie.
by TommyD53 September 4, 2011
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When you remember a (usually) traumatic experience and disconnect all outside distractions.
Ariana: I think Mikey is high..
Justin: Nah, she is having a Vietnam Flashback from when she was on Hannah Montana.
Selena: I get it. Disney is awful.
Ariana: Yeah, Nickelodeon is better.
by TheDonutLordOfVietnam September 5, 2016
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A drinking game based on the war of the same name. Similar to beer pong.

Two teams, America and Vietnam, both get 10 cups. America arranges their cups in a triangle (as in beer pong), with the usual amount of beer in them. Vietnam places their cups anywhere they like on their side of the table, but the cups are full.

If America makes a shot, someone on team Vietnam has to drink the whole cup and removes it. If Vietnam makes a shot, someone on team America has to drink the cup and refill it.

The game ends when all cups on the Vietnam side are gone, or when America gives up.
Hey, wanna play beer pong?" "Nah, I got a better game, it's called the Vietnam War."
by Dr Moo August 6, 2011
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Why Did the USA invade Vietnam?
After the second world war, The USA and The USSR emerged as the world's two great superpowers. However, the two nation's political systems conflicted and a war of words and threat broke out. This was known as the cold war. America became increasingly fearful of the Soviet Union's communist system spreading across the world, one country at a time. This theory was known as the 'domino theory'. When China went communist in 1949, America felt that the threat of communism was very real. As a result, they entered Korea and were partially successful; The ROK (South Korea) remains a capitalist state today. They then turned their attentions too Vietnam, where a communist group known as the Viet Minh had emerged, founded by Ho Chi Minh. France were already present in Vietnam as it had been a colony of their's prior to WW2. However, even after a vast amount of support given by the USA, the French were eventually driven out by the Viet Minh. America's response to this was to help Ngo Dinh Diem to power in south Vietnam. Diem was a ruthless dictator who was cruel to the peasant population of Vietnam, but he was anti-communist, and so the USA helped him. Before long, a new communist militia group was set up called the Viet Cong, again founded by Ho Chi Minh. America began to send military 'advisers' to combat the Viet Cong. This continued for a few year until eventually, in 1965, The USA was fully at war with communist forces in Vietnam.
The Vietnam War was a 'product' of the cold war.
by Birchy1919 February 9, 2010
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where it is extremely cold, you're penis shrinks to just being a helmet in you're pubes, looks like a soldier poking his head out a bush. its Vietnam pants as opposed to Iraq pants as Vietnam is very bushy, Iraq is a desert!
it was so cold i had my Vietnam pants on today
by Turbo Uberman December 22, 2010
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