the exam was a doddle
1doddle — dod|dle [ˈdɔdl US ˈda:dl] n be a doddle BrE informal to be very easy ▪ The exam was a doddle! …
2doddle — noun be a doddle BrE informal to be extremely easy: The exam was a doddle! …
3List of British words not widely used in the United States — Differences between American and British English American English …