Riding the Bad Decision Express, or B.D.E. as it is sometimes called, involves making any sort of inappropriate, lewd, or generally abysmal decision that results in a temporary to prolonged state of personal unhappiness followed by an increase in one's friends' amusement.
Nathan rode the Bad Decision Express last night all the way to Strugglesville- he got drunk, had sex with an ugly chick, and then threw up on himself while trying to sneak out. Utterly hilarious!
by Noah Plakun March 26, 2008
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A Thursday night of bad decisions resulting in a mild to moderate hangover at work on Friday. At work on Friday, your co-workers will notice your breakfast of greasy foods, particularly sausage links. If you don't have to work, but have an early Friday morning flight and haven't packed and try to say "no" to participating in Bad Decision Thursday, it is of utmost importance that your friends tell you to get your ass out and you can sleep on the plane. Bad Decision Thursday involves a Friday morning sacrifice. Meaning you have to adult, but it's difficult because you made Bad Decisions... on Thursday night. Just say "yes."
"Put your pants on and get to the bar, it's Bad Decision Thursday, Bitches!"
by Maida S January 18, 2019
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A lesser known cousin of the jewpanasian, the BDMAC tends to shamelessly ask her friends for advice and then promptly turn around an do whatever she pleases. The decisions made by the BDMAC usually end with her in jail after her horrible idea ends in death and destruction. She tends to believe that she is a ninja however we all know that ninjas are not cambodian.
If a bad decision making assclown jumped off a cliff would you?
by FCW December 4, 2008
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Bad text decisions are the texts that you know you should not, under any circumstances send, but you do. Often committed whilst super high or drunk, these texts seem like a good idea until you have pressed send. One common characteristic of bad text decisions is when you will ignore your friends' queries into who you are texting until said text is sent. After informing them, good friends will usually confiscate the phone.

Can also be shortened to BTD.
"So, is it bad if I just texted Kevin and told him I wanted him?" "You mean oldman creeper Kevin? Yes, that was a terrible idea, give me your phone before you make any more bad text decisions."
by The KickBack Kid February 5, 2010
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A decision that results in regretful mornings and bruised knees. A bad life decision is any hilarious decision committed under the influence of drugs, alcohol, or diner food. The term is often shortened to its acronym BLD.
Passed out naked one night in bed. Woke up to find roommate and girlfriend sitting talking. With no way to get clothes with out being exposed i laid in bed with a blanket. Missed two classes until they left and failed one. Yes a bad life decision. - taken from www.badlifedecisions.com
by Charlie Jacobs II April 7, 2010
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To rotate ones shoulder's, raising one after another while keeping your arms bent at the elbows whilst gravitating towards a bad decision. Most commonly used to describe someone on the path of unfaithfulness, exuding a particularly joyous excitement about the prospect that is visible in their shoulders.
Nathan gave one last sly smile to Danny, Tom and Rich before giving a vigorous episode of bad decision shoulders then turning and moving towards the ladies at the bar.
by Spoonsauce June 20, 2022
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