7màahng kyuhn dáa séi lóuh si fū 盲拳打死老師父 — [to kill a master with untrained fists] to defeat someone of greater skill or experience by using an unorthodox strategy.
8màahng làuh 盲流 — [blind flow] a headlong rush, a mad rush, a blind stampede (e.g. speculators rushing into a market).