Vocabulary

ਜੱਪ
japp

to chant, to recite (same root as Japji Sahib — devotional recitation). Here: boys 'chant' her name like a prayer

verb
In this song
Peaches · Diljit Dosanjh
Verse 1
ਮੁੰਡੇ ਲੈਂਦੇ ਤੇਰਾ ਨਾਂ ਬਿੱਲੋ ਜੱਪ ਨੀ
munde lainde tera naa billo japp ni
Boys chant your name like a prayer, billo