phrasal
: on impulse : prompted by the occasion : quickly , suddenly
asked him how he could think up such language on the spur of the moment — Max Eastman
phrasal
: on impulse : prompted by the occasion : quickly , suddenly
asked him how he could think up such language on the spur of the moment — Max Eastman
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012