In FCE and CAE exams students may have to write an informal letter about a party they went to. Some idioms
mastered with a sense of humour will surely help catch the reader’s attention. (Let’s not forget, however, important ingredients such as informal connectors
, questions, exclamations, and, obviously, the suitable layout.)
Slang can also be used, to some extent, just for adding extra flavour…
Here’s a suggested list of spices:
IDIOMS AND SLANG – PARTIES AND PEOPLE
In the IELTS exam students can also use some of these idioms if they are given a task card on this topic in Speaking part 2.