expectorate   spit    amate, igikororwa
(spurted from between teeth as indication of scorn) inyeri
(to ~) gucīra amate
(to ~ on) kuvuma amate
(~ up milk, baby) kubōga
(~ up phlegm) kuruka
En-En dictionary 
gucīra (-cīriye)     v    1. to determine, 2. to think, 3. to spit, expectorate