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3.
A group of young men who go on a "Quest" for "sex" or shagging.

Hence: Shest

or a shag fest
You must join us on our never ending Shest.

Oh dude, my Shest is going mighty fine
by Tbizzle27 February 03, 2009
 
1.
An article of clothing that is composed of a vest that is attached to a shirt.
Did you see the hideous shest he was wearing?
by Fashion Forward February 02, 2008
 
2.
Noun / Verb

The act, or result of defecating on another person's chest. Sometimes welcome, but often unwanted.
All I want for Christmas is a shest.

You mess with the best, you gettin' a shest.
by Junglepantz December 17, 2012