onitamii Share definition Flag Onitamii is a guy who's, funny, interesting, and kindhearted. Onitamii can also be used to call someone mean or rude. Guy one:"do you know him?" Guy two:"yeah that's Onitamii meanest guy in school." onitamii by Thegokubacca May 17, 2021 0 0 Get merch Get the onitamii mug. Buy Now — $32.95 See more merch
