English According to Tony Thorne's Dictionary of Contemporary Slang, published yesterday, "fucknuckle" is "a term of abuse used of males. The second component is included merely for the purpose of reduplication of sound and signifies nothing."

English Jim Crotty's How to Talk American, published this week in the US, says there are three ways to say goodbye in LA: "I'll call you" means get lost, you'll never hear from me again; "Let's do lunch" means I like you, but you're a loser; "Let's do sushi" signals the start of a true friendship.

International According to a vocabulary launched last month by the International Federation of Associations of Anatomists, the space between a woman's breasts should properly be called the "intermammary sulcus".