1. A slovelnly dressed man. Often mistake for a homeless man. It is the combination of "fucking" and "monster". Fonster = Fucking Monster.
1. Also known as a sandwhich that consist of all available condiments.
1. Man, did you see that guy Dave? He was wearing busted timberland boots, dirty jeans, a tight polo shirt, and he had pubes growing off his chin...what a fonster!
2. That is quite a fonster sandwhich you got there...mayonaise, lettuce, tomatoes, ketchup, pepper, salt, vinegar, ham, cheese, pickles, onions, and relish.
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