piper

piper /ˈpaɪpɚ/ noun
plural pipers
piper
/ˈpaɪpɚ/
noun
plural pipers
Britannica Dictionary definition of PIPER
[count]
: a person who plays a pipe or the bagpipes

pay the piper

informal
1 
: to pay the cost of something
2 
chiefly US : to pay money or suffer in some way because of something you have done