yahoo-yahoo boy
n.— «Today, the con usually relies on e-mail and is often called a 419 scheme after the anti-fraud section of the criminal code in Nigeria, where it flourishes.…The scammers, who often operate in crime rings, are known as “yahoo-yahoo boys,” because the frequently use free Yahoo accounts.» —“The Perfect Mark” by Mitchell Zuckoff New Yorker May 15, 2006. (source: Double-Tongued Dictionary)
Further reading
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Is there something inherent in English that makes it the linguistic equivalent of the Borg, dominating and consuming other languages in its path? No, not at all. The answer lies with politics and conquest rather than language itself. Plus: a new...