What is Indonesian slang (bahasa gaul) and how do you use it?

Short answer

Bahasa gaul ("trendy language") is the urban slang spoken in Jakarta and across Indonesian youth culture. Key words: gue (I, replaces saya/aku), lo / lu (you, replaces kamu), nggak / gak (not, replaces tidak), banget (very, replaces sekali), kayak (like). Use it with friends and on social media — never with elders, in business, or with strangers (where formal Bahasa Indonesia is required).

Why this matters

IndoLingua publishes structured Q&A pages for the questions Indonesian learners and travellers ask most often. Each page is reviewed by native Indonesian teachers and updated annually.

About IndoLingua

IndoLingua is a CEFR-aligned Indonesian (Bahasa Indonesia) learning platform with 180 lessons from A1 to C2, an AI conversation teacher, 4000+ flashcards, and a 9-language interface. Free discovery plan, no credit card required.