発破をかける;ハッパを掛ける;発破を掛ける [ハッパをかける(ハッパを掛ける);はっぱをかける(発破をかける;発破を掛ける)] /(exp,v1) (1) (uk) to set off an explosive/(exp,v1) (2) (uk) to start a fire under someone/to motivate someone with rough words/EntL2104110/