Someone who is mentally challenged (retarded) and Blasian (black and Chinese). The term is used as an offensive and hilarious name to call someone.
Mark: dude Jamal is fucking my sister.
Liam: dude he’s a fucking rechigga.
Retarded-Chink-Nigga
Someone who is overall having a dumb moment, very unaware and confused
Kayden is being such a damn rechigga