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
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When a male's penis is not erect, but completely down either. Usually occurs in between the two. (See also: Chubby)
<Girl> Wow! Peter has a huge cock!
<Guy> Nah, it's just a foamer.
by p-viddy April 21, 2004
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When an individual inserts any number of mentos between 3 and 10 up the rectum and proceeds to buttchug an entire liter of Coca Cola or other carbonated beverage.
Damn that was hot my girlfriend Stella just sent me a video of her doing a Matthew Foamer
by Doctor Bitch Pants November 28, 2021
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When a Beer is poured or cracked and foams at the top.
JC cracked a Bapple and the foam came rose out of the can. “JC bro you got a foamer Simpson.”
by Foamer Simpson January 10, 2023
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Someone who foams hard over Caltrain. They usually live in Redwood City California and will go as far as to tell someone to end their life for not liking Caltrain or threaten to sue Caltrain for retiring their F40ph fleet.
A Caltrain foamer argues with someone saying Caltrain is the worlds best railroad
by JulianRailroad November 3, 2021
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When someone gets the D so hard they are incapable of swallowing their sylvia, making their mouth foam as if they had rabies
"Rumour has it that Gabe and Angela fucked last night. I heard she was a lust foamer."
by ShiroIsSnazzy August 18, 2018
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