mutant?

something that is very different from others of the same type, in a way that is strange or bad – often used humorously 變異的東西；怪胎〔常為幽默用法〕

vengeance

the act of punishing or harming somebody in return for what they have done to you, your family or friends報復；報仇；復仇

synonym revenge

a desire for vengeance復仇心

?vengeance on/upon somebody to take vengeance on somebody對某人進行報復

nibble?

to bite something with small bites, especially food小口咬，一點點地咬（食物）

negative

less than zero負的；小于零的