pip·er 
/ˈpaɪpɚ/ noun
plural pip·ers /ˈpaɪpɚ/ noun [count] : a person who plays a pipe or the bagpipes
pay the piper
informal 1 : to pay the cost of something
▪ We have to do what they say because they're the ones who are paying the piper. ▪ You know what they say: he who pays the piper calls the tune. [=the person who pays for something controls how it is done] 2 chiefly US : to pay money or suffer in some way because of something you have done
▪ They have mismanaged the company for years, and now they have to pay the piper.
▪ We have to do what they say because they're the ones who are paying the piper. ▪ You know what they say: he who pays the piper calls the tune. [=the person who pays for something controls how it is done]
▪ They have mismanaged the company for years, and now they have to pay the piper.
