make fun   (to ~ of) kunegura, guhema
(to ~ of by recalling good he has lost) gucurīra
(to ~ of, esp. someone in trouble) kwīshinyira
(to be made fun of) gutētērwa
En-En dictionary 
kunegura (-neguye)     v    1. to denounce, 2. to blame, 3. speak evil of, 4. to make fun of, 5. to criticize,
guhema (-hemye)     v    1. to offer but take back, 2. to be insincere, 3. to make fun of, 4. to be ironic, sarcastic
kwīshinyira (-īshinyiye)     v    1. to laugh at, 2. make fun of (esp. of someone in trouble)
gucurīra (-curīriye)     v    1. to call to someone that cannot answer, 2. to make fun of someone by recalling the good he has lost