Jeet Kun Do or Way of the Intercepting Fist, a fusion of Eastern and Western martial arts led by Bruce Lee 李小龍|李小龙[Li3 Xiao3 long2]
花拳绣腿
huā quán xiù tuǐ
flowery of fist with fancy footwork (idiom) / highly embellished and ineffectual / fancy but impractical skills / all show and no go / pugilistic wankery
绵里藏针
mián lǐ cáng zhēn
lit. a needle concealed in silk floss (idiom) / fig. ruthless character behind a gentle appearance / a wolf in sheep's clothing / an iron fist in a velvet glove