Top Definition
A Vietnamese term for Cunt, Vulva, Pussy, Snatch... Lon is used to describe just about anything and everything in Viet Nam.
Mofo is a dickhead = Thanng mat Lon
Bitch is a skank = Con Lon diem
Food is terrible = Do An nhu Lon
What a beautiful scenery = Xinh nhu Lon
by KeMeCaSi March 29, 2015
Abreviation for Loser On Net
Wanna hang out? Or are you gonna be a LON?
by allan January 22, 2004
Short for "pylon"...where a pylon is a person who just stands around silent and stationary, like an actual pylon.

Can also refer to someone uninteresting or boring.
Some party that was...everyone was just standing around like lons so I left...
by PYLON JOHNSON December 05, 2013
A superlative suffix of an adverb, meaning "very".
Q: Do you want to get drunk tonight?
A: Totallon!

Q: He's hot. Is he gay?

A: Obviouslon.
by Grubtard December 04, 2009
A way to pronounce the natural log which is actually spelled Ln.
The integral of 1/x is "Lon" of x. (Ln x)
by Zip Code Ness March 05, 2008
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