gushishwa (-shishwe)     v    to be nauseated by repulsive thing
 gushishwa : possible conjugation of:
guhīshwa (-hīshijwe)     v    1. to be cooked, 2. be burned
 gushishwa : passive of...
gushisha (-shishe)     v    1. to be big, fat, chubby 2. to be flourishing (of growing things, child), 3. to be very dirty, unpleasant, repulsive, 4. to tie beans to hedge to dry
nauseated    (to be) gusesemwa
(by repulsive thing) gushishwa
En-En dictionary 
repulsive    (to be) gushisha
(to be nauseated by a ~ thing) gushishwa
En-En dictionary