peacock vs shoot first and ask questions later

peacock

• To strut about proudly. 

• To engage in peacocking, ostentatious dress or behaviour to impress women. 

• A male peafowl, especially Pavo cristatus, notable for its brilliant iridescently ocellated tail. 

• A peafowl (of the genus Pavo or Afropavo), either male or female. 

• Any of various Asian species of papilionid butterflies of the genus Papilio. 

• A vainglorious person [from the 14th c.]. 

shoot first and ask questions later

• To act boldly. 

• To take hasty, immediate action with serious consequences, without first adequately investigating the situation.