無情白事:mou4 cing4 baak6 si6
(pos:副詞)(sim:無啦啦)(sim:無情情)(sim:無端白事)(sim:無端端)
<explanation>
yue:冇理由、突然噉做一啲嘢
eng:to do something unexpected for no good reason
<eg>
yue:你無情白事做咩打人啫？ (nei5 mou4 cing4 baak6 si6 zou6 me1 daa2 jan4 zek1?)
eng:Why did you hit someone for no good reason?