A term for sex with a smelly person.
It was the worst smex I've ever had...he smelled like cheese.
by katanddani April 25, 2006
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Communication in the form of sexting by smoke signal; often an ineffective form of flattery and publicly embarrasing for those less gracefully supplied.
Hey, who is smexing right now? Is that John? Yeah, it must be John...
by Matt'snewphone December 4, 2010
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SMEX is NASA's abbreviation for, "Small Explorer". They use it in regards to missions using much smaller than normal shuttle-craft.
23:05 iMaHeRosPunK: You need to come to Orlando
23:05 iMaHeRosPunK: and make the sticky smex with me
23:06 benspectorLITE: SMEX = Small Explorer
23:06 TehKaze: lol!
23:07 iMaHeRosPunK: =*(
by BenSpector May 11, 2005
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Teenager's way of saying sex with out saying sex
Lets have smex.......im not smexing you
by NicholeAH January 20, 2018
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Making out viciously while fully or partly clothed. Also known as dry sex.
"So how far did you get with Kris last night?"

"Well, we didn't go all the way, but we had awesome SMEX."
by Lexabella October 11, 2004
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Smex- smart sex. Having sex using a condom but with it still being enjoyable!
George Asked Kyle if they wanted to have smex, Kyle agreed and they later proceeded to have smex 👍🏻
by The/lad/of/all/Lads July 27, 2018
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A person who eminates smexiness(higher class then sexiness).
OMFG! Johnny Depp is Teh Smex! He aged well.
by Yousei April 5, 2005
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