ADJ
(用于名詞前)特別好的，異常巨大的，非常重要的
Young people sometimes use mega in front of nouns in order to emphasize that the thing they are talking about is very good, very large, or very impressive.
例句
...her newly acquired mega salary.
她剛剛到手的巨額薪水
...the mega superstar Madonna.
超級巨星麥當娜