Start speaking
like a local.
The slang dictionary that shows you how Indonesians actually talk. From textbook formal to street casual.
INDONESIAN · 🔥 STREET
Gue mau pesen makanan
ENGLISH · 🔥 STREET
I wanna order some food
ENGLISH LEVELS
📖 I would like to order food
☕ I want to order food
🔥 I wanna order some food
💀 Lemme get some food
Courses teach formal.
Locals speak casual.
What you learned
"Saya ingin memesan makanan"
📖 Textbook correct. Stiff. Formal.
What locals say
"Gue mau pesen makanan"
🔥 Natural. Casual. Real.
Indonesian courses teach you "saya" and "anda". Words locals rarely use in everyday conversation. The result? You sound like a textbook, not a friend.
Four ways to say
anything.
See how the same idea sounds across formality levels. Pick the one that fits the situation. From visa applications to street food orders.
Formal
Official documents, grandparents
Polite
Business owners, older locals
Street
Friends, daily conversation
Ruthless
Texting, close friends
ENGLISH
Have you eaten?
INDONESIAN ALTERNATIVES
📖 Apakah Anda sudah makan?
☕ Sudah makan belum?
🔥 Udah makan belom?
💀 Dah makan blm?
ENGLISH
Is this your book?
TRANSLATION
Ini buku kamu?
See how words
connect.
Tap any word to understand why it's used. Colors link translations across languages. Discover patterns, not just definitions.
- ✓Color-coded word mapping between languages
- ✓Tap any word for deep explanations
- ✓Grammar insights in context, not isolation
1,288 nodes of
real knowledge.
A knowledge graph built from 2+ years of structured learning with a tutor. Not AI-generated fluff. Real patterns discovered by a real learner, enhanced with AI.
62
Grammar Concepts
49
Particles
26
Affix Patterns
10+
More territories
62
Grammar
49
Particles
26
Affixes
3
Rules
1
Disc.
Your progress: 31 / 1,288 explored
Action before
knowledge.
Most apps teach rules, then let you practice. Slangua flips it: use first, understand later. Confusion is part of the process. The aha moments are the reward.
Learn by Using
No tutorials. Just start. Patterns reveal themselves through use.
Discover, Don't Memorize
Experience first, explanations second. Like learning your first language.
Earn the Aha
The confusion is intentional. The insight that follows is unforgettable.
Built by a learner,
for learners.
I'm a polyglot who's been learning languages my whole life. For the past 2+ years, I've been studying Indonesian with a tutor, taking meticulous notes on every pattern, every exception, every "aha" moment.
Slangua is everything I wish I had: a dictionary that knows the difference between what textbooks teach and what people actually say. Real knowledge from a real learner, enhanced with AI.
André KovacBuilder. Educator. Lifelong language student.
Start speaking
like a local.
Early access for serious learners. Indonesian first. More languages coming.
Coming soon