The hink pink for a Christmas carol that seems to go on forever is "endless chorus." In this hink pink, "endless" refers to something that goes on without stopping, and "chorus" is a group of singers who perform together. This hink pink playfully captures the idea of a Christmas carol that feels like it never ends due to its repetitive nature.
A hink-pink for an incorrect melody could be "wrong song." In hink-pink riddles, the goal is to find a pair of rhyming words that describe a specific word or phrase. In this case, "wrong" and "song" rhyme and accurately describe an incorrect melody.
grim hymn
wrong song
wrong song
lathering gathering is the hink pink for a group of men shaving
lunch bunch
a rank bank
news crews
news crews
Lunch Bunch.Lunch Bunch.
loud crowd
loud crowd
loud crowd
loud crowd
loud crowd
loud crowd