evolved from the well-known word schmexie, then to schmy by the late 1880's, then to its commonly used form of the present era, schmyzer. It means lexie but is also synonymous with katy, or mark-ass friend.
by schmyzer April 12, 2005
It means shut up. Best used when putting your finger up to someone's mouth so as to beckon them to be quiet
Bddddlch, we're in the library!
by schmyzer April 12, 2005