In the 19th century, the Oxford English Dictionary was a bit like the Wikipedia of its day, in that much of its information was crowdsourced, gathered by thousands of volunteers. Linguist and lexicographer Sarah Ogilvie tells the stories of many of...
switch hitter n.— «Recipients of Obama’s summer mailing include many lobbyists who are called “switch hitters” in political parlance—contributors to lawmakers of both parties who seek to open Capitol Hill doors to them on a bipartisan basis...

