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1.
A term railroad employees use to describe a railroad enthusiast / railfan and the railfan community at large. Most often used disparagingly.
(Engineer to conductor aboard a freight train)

"Man, we got some foamers ahead taking pictures...they need to just get a life and find something to do besides hang around the tracks all day."
by Aeromoe February 27, 2008
192 44
 
2.
Orignally used to describe railbuffs, it now describes anyone who gets excited about something so much that they start foaming at the mouth.
Those geeks that play magic the gathering are foamers. They get so excited over one card that they start foaming at the mouth.
by Brent Higgins February 26, 2006
193 73
 
3.
The type of n00b who would use derogatory rail slang like SCAXliner or Amtrash, complains about the tuning of train horns, tends to endanger his or other's lives for a good photo, and angers railroad crews through his actions.

Also tends to spam youtube haters' channels, and tend to harrangue people via internet, cell phone, etc.
J: OHMYGAWSH AWESOME K5LA ON THIS TRAIN!

G: Dude calm down, don't be such a foamer.

J: OHMAIGAWD SHAVE AND A HAIRCUT PLZ!?
*cuts in front of parked train*
MUST HAEV GUD GOING AWAY SHOT!!!!1111
by AmtrakFan454 February 11, 2011
44 35
 
4.
Used by professionals in the theme-park industry to describe hard-core fans of theme parks, amusement parks, and attractions.

As a fan base, they get so excited about something that they start foaming at the mouth.
Those foamers over at the MousePlanet discussion boards are freaking out about the latest Epcot rumors.
by eticket October 12, 2010
22 38
 
5.
Derrogatory term used by surfers to describe bodyboarders, in reference to the fact that body boards are constructed of foam.
Beat it, foamer. Surfers only.
by Capt. America is Dead August 26, 2009
4 26
 
6.
an alcoholic drink- primarily beer
pass me another foamer
by nor-cal March 07, 2004
19 49
 
7.
(1) One who talks alot of non-sense and completely lies about something or someone. (hense having foam in ones mouth and not being able to understand them)

(2) An asshole who says something about someone but doesn't have the courage to back it up.
(1)Dude, He's such a foamer hes choking himself.
(2)He talked shit and didn't even show up for the fight, what a foamer.
by Snwpaint32 June 15, 2007
16 49