It’s currently bush week here at the Australian National University. This has traditionally been a period of student festivity and pranks. The earlier sense of bush week refers to a time when people from the country came to a city, originally when bush produce etc. was displayed. This sense is recorded from the early 20th century. In the mid-20th century bush week is also used to refer to this week as a time when people from the bush are exploited as credulous by city people, are susceptible to con men, etc. We see this sense especially in the phrase what do you think this is – bush week?: a response to a request etc., implying that one is being unfairly imposed upon or taken for a (rustic) fool. The staff at the Australian National Dictionary Centre wish the students a joyful bush week. But please behave yourselves!