yaya papaya

Chosen for the rhyme. The origin of yaya remains unclear. It may have its roots in Malay yang-yang (“god”) or Old Javanese yayah (“father”).

yaya papaya (comparative more yaya papaya, superlative most yaya papaya)

1. (Singlish) Conceited, arrogant.

   Don’t so yaya papaya lah. You dono then don't bluff. ― Stop lying and stop being a smart aleck.

• Lee, Jack Tsen-Ta (2004) “yaya”, in A Dictionary of Singlish and Singapore English