(pos:名詞)
<explanation>
yue:#高超 但係唔#實用 嘅#技藝
eng:advanced but impractical craftsmanship
<eg>
yue:讀數學系嚟做咩唧？學埋晒啲屠龍技。 (duk6 sou3 hok6 hai6 lei4 zou6 me1 zek1? hok6 maai4 saai3 di1 tou4 lung4 gei6.)
eng:What's the purpose of studying Maths in university when all that are taught are merely advanced but never practical?