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An erection of the penis, attained whilst traveling in a car.
John stayed in the car, because he secretly had a car-don.
by Mr. Pork January 28, 2011
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Jul 12 Word of the Day
The horrible moment when you realise that you have accidentally done something very slightly wrong which has very bad (usually embarassing) implications for you. This is typically the moment of realisation that you just sent a dirty text message to a close member of family, typically your mother, rather than the intended recipient.
Message: "i'm free this afternoon so come over and fuck me senseless, my parents will be out all day"
Recipient: Mum
Message Sent
- Onosecond occurs here -
by Jimmed September 26, 2006
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2
A woman hard on for when a male is buying her alot of stuff with his credit card. Esentially, gets horny when money (credit cards) is spent on her.
Jenny got such a card on when I took her shopping at Saks fifth avenue. She was ready to bang me in the dressing stall.
by d1rewolf17 March 08, 2009
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3
The type of hard-on guys get in a car, usually while driving over a continuously bumpy road.
Guys in a car going on a camping trip:
Hey - check-out Jake - he's asleep, but has a c'ard-on.
That's funny!

Guy thinking to himself:
Damn bumpy road - giving me a c'ard-on.
by RNPS June 18, 2007
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4
An erection acquired whilst innocently travelling in a car.
Hardon + Car = Cardon
I cant get out of the car yet, I have a massive cardon
by danielsan74 April 26, 2011
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5
1. When a person who plays trading card games (e.g. Yu-Gi-Oh, Magic the Gathering) enters a state of euphoria after acquiring a rare, valuable, or otherwise useful card, usually from a booster pack.

2. When a person who trades or collects cards of any sort strongly desires to obtain a specific card.
1. "Dude, when I pulled that Jester's Hat back in '92, I got such a card-on!"

2. As the young boy stared hungrily through the card store's glass front, he experienced his first card-on for the vintage Babe Ruth rookie card.
by Legsman February 10, 2010
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6
Being sexually aroused by a car.
Seeing that Aston Martin on the road gave me a raging Cardon.
by DjCyric October 16, 2014
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