Learning Indonesian Urban slang

[Flora]

Honestly, I don't like writting the acronyms or shortened words unless it's a quick dictation or sending sms using Handphone which has limited letters for sms. Usually I write the full words. But when sending sms, if the receipient is foreigner, although my handphone has limited words, I always use the full words, I know they will not understand

Sometimes not only acronyms they use, but also symbol. When I studied at university, I was really confused when borrowing my friend's book. She used many symbol and took longer time for me to understand the whole book.
She drew picture on her notebook like flower to indicate bunga or interest rate.

Interest in bahasa Indonesia is bunga(flower), so she drew the flower, and many more. I was really confused.