My Suggestions

macungiriro

n. · class 6

  1. addition, something added into the bargain; 2. akimugutha na macungiriro akimuruma, he hit him then (to add insult to injury) he started to abuse him; 3. na macungiriro akimuhe ciringi ikumi, and (not content with that) he gave him ten shillings into the bargain