Top Definition
Abbreviation for Dextromethorphan.

Chemical found in over the counter cough suppressants that when ingested in large quantities causes effects similar to tripping.
"Dude, I just at 500mgs of Dex!"
"Holy shit dude, you're going to be dexing for 8 hours straight."
"I'm going to be all dexed out, man!"
by obie December 20, 2003
An abbreviation for Dextroamphetamine, a prescription drug similar to addys and known for its stimulant effects. While usually prescribed for narcolepsy or ADHD, Dex has hit the streets in recent years and has found a place in the world of pill poppers, especially college students.
I did some dex and completed my project in only 2 hours!
by NightlyMime April 22, 2007
Otherwise known as God's greatest gift to the world, dex is an umbrella term assigned to female spandex leggings/yoga pants that make a woman's legs, ass, and waist look even better than they would naked.

Dex is used when referring to the ass/legs in the leggings. Therefore hot girls have nice dex.

On the 8th day, the Lord God gave Man the beauty of dex.
Saw a girl with the nicest dex ever, but she turned around and caught me staring.

Went to the women's volleyball game last night, holy shit man it was dex overload, almost couldn't handle myself in there.

Thought she was hot to begin with, then fall season came around and she slipped into some dex and I was mesmerized.
by Zonesman September 24, 2014
1. Short for dexterity, skill or adroitness in using the hands or body; agility. Often used as shorthand for dexterity in RPGs.
2. Mental skill or quickness
A: What stats should I use for my rogue?
B: Just go with with DEX, can't go wrong with that.
by HonestDav July 15, 2009
Your fingers. Taken from the word "dexterity," which means skillful facility with the hands and feet.
Dude, I just smashed my dex in the car door. You have chubby dex, weirdo. Why are your dex all covered in shit?
by mexicanjester August 21, 2009
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