noun
thing claimed to be originally Korean
Derogatory slang used in Japanese online communities to mock Korean claims of origin for cultural items or inventions. A wasei-eigo blend of Korean 'uli' (우리, 'our') and 'original'.
wasei (Japanese coinage from Korean), from uli + (ori)ginal
ネットでは、キムチがウリジナルだと言われることがある。
On the internet, kimchi is sometimes called 'urijinaru' (claimed as originally Korean).