「跟紅頂白」

(pos:動詞)
<explanation>
yue:大熱之時就支持、追隨，一旦形勢衰落就唔再支持，甚至反對
eng:to follow when it goes north and to be against it when it goes south; to follow the trend
<eg>
yue:揀科應該因應自己嘅能力同興趣，唔應該跟紅頂白咁盲目。 (gaan2 fo1 jing1 goi1 jan1 jing3 zi6 gei2 ge3 nang4 lik6 tung4 hing3 ceoi3, m4 jing1 goi1 gan1 hung4 ding2 baak6 gam3 maang4 muk6.)
eng:You should apply for programmes offered by tertiary institutions based on your ability and interests, but not blindly jump on the bandwagon.