"Craic" (/kræk/ KRAK) or "crack" is a term for news, gossip, fun, entertainment, and enjoyable conversation, particularly prominent in Ireland. It is often used with the definite article – the craic – as in the expression "What's the craic?" (meaning "How are you?" or "What's happening?"). The word has an unusual history; the English crack was borrowed into Irish as craic in the mid-20th century and the Irish spelling was then reborrowed into English. Under either spelling, the term has great cultural currency and significance in Ireland.
The word crack is derived from the Middle English crak, meaning "loud conversation, bragging talk". A sense of crack found in Northern England and Scotland meaning "conversation" or "news" produces expressions such as "What's the crack?", meaning "how are you?" or "have you any news?" The context involving "news" and "gossip" originated in Northern English and Scots. A book on the speech of Northern England published in 1825 equates crack with "chat, conversation, news". The term is recorded in Scotland with this sense as far back as the 16th century, with both Robert Fergusson and Robert Burns employing it in the 1770s and 1780s. The Scottish song "The Wark o The Weavers", which dates back to the early part of the 19th century, published by David Shaw, who died in 1856, has the opening line "We're a' met thegither here tae sit an tae crack, Wi oor glesses in oor hands...." A collection of folk songs from Cumberland published in 1865 refers to villagers "enjoying their crack". A glossary of Lancashire terms and phrases published in 1869 lists crack as meaning "chat", as does a book on the local culture of Edinburgh published in the same year. Glossaries of the dialects of Yorkshire (1878), Cheshire (1886), and Northumberland (1892) equate crack variously with "conversation", "gossip", and "talk". These senses of the term entered Hiberno-English from Scots through Ulster at some point in the mid-20th century and were then borrowed into Irish.