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15.
A massive wad of chewing tobacco, generating lots of saliva and a protruding lower lip.
You should have seen mike at the bar last night, he had the biggest hoss in!

Jesus christ, he's hossing at a funeral...

I'm hossin' nice right now!

I need a hoss.
by Gator Faced July 13, 2011
 
16.
Roy Halladay.
Roy Halladay completed 56 games since the 2001 season, almost doubling the next guy (CC Sabathia) who has only 30. Roy Halladay is a Hoss.
by Bdawk20 October 22, 2010
 
17.
A point in time when a person, place, or thing's potential is at its most, and that potential is acted out in a way that causes astonishment, disbelief, or an unpredictable event. It is when the act is completed that they are considered "hoss"
PERSON: Did you see what that guy did? What a hoss!
PLACE: Cancun is a hoss place to go to for spring break.
THING: Katrina was a hoss storm that caused unimaginable carnage.
by Wes, Zach, and Jesse November 10, 2008
 
18.
(US, slang, Northwest) A Car.
Some guy: That's a real boss hoss.
Some other guy: It sho is.
by Derwos September 11, 2011
 
19.
Synonymous for "cock"
Suck my hoss, bitch.
by P.J. Hutch March 30, 2011
 
20.
Hoss is a synonym for huge/buff/boss/big guy; commonly a douchebag; seen a lot in the Badin atmosphere.
Yeah bro! He's such a hoss!
by Sacktavious May 24, 2010
 
21.
putting in a large dip or chew,chewing tabacco
oh man i could go for a big hoss right now
by woodfield April 28, 2010