Indonesia or Indian Islands, considered a derogatory for Indonesia by some racist Indonesians with zero history knowledge. Indonesia (especially Jawa, Bali & Sumatra) borrowed Hindu-Buddhism cultures from India pre-Muslim era, they should be proud of it, not offended by it.
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."