老老實實

老老实实
lǎolǎoshíshí
  1. truthfully; honestly
  2. well-behavedly

Wiktionary

Entry Composition

=1 老老 lǎolao
  1. maternal grandmother
  2. same as 姥姥
=1 老老 lǎolǎo Expressive reduplication of 老 (lǎo).
2 實實 shíshí really; in substantial fact