"I guarantee you that they know what "stays" are
on Wall Street."
Most Wall Street firms have
gone business casual all year round. Incidentally I
have no idea what a stay is and I am working on Wall
St this summer.
At many Wall St. firms, a
polo shirt and khakis is entirely suitable for
business casual dress. At my place of work business casual
is a shirt with a collar, and khakis or slacks.