Donno without the context. The guy who has just showed up is the toughest in the business. Or the product they are introducing is the toughest made so far.
2011년 2월 9일
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eliot is as weak as they come :D
2011년 2월 9일
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Usually it means "toughest" (i.e., the most tough thing/person). So, "That guy is as tough as they come" means he is a very, very tough man.