Cupid.
Mercutio is referring to Cupid, the Roman god of love, when he says "blind bow boy." This is a playful way of pointing out Cupid's blindness, as love is often portrayed as irrational and unpredictable.
Mercutio
Bow Madness - 2008 Box Blind Breakdown 4-13 was released on: USA: 19 September 2011
Simple, none because it says "IF NO"
"Blind bow-boy's butt-shaft".
The Bible says you should bow your head to authority -- It is a sign of respect and humility.
Claudius.
"the blind bow-boy's butt-shaft" (from Romeo and Juliet)
It sounds like you are referring to "rosin".
Pizz. is not a bow term; it means not to use the bow. It means to pluck the string, or Pizzicato. When the music says "arco", you should start using the bow again.
In lines 86-87 of Act III Scene I, Romeo reminds Mercutio and Tybalt about the consequences of their ongoing feud between the Montagues and Capulets. He urges them to reconsider fighting and to make peace instead, as it has already caused enough harm.
"arco" means playing with the bow. so if the song says "arco" you play with the hair of the bow on the string.