暢懷

畅怀
chànghuái

as much as one likes; to one's heart's content

Wiktionary

Entry Composition

1 暢 chàng
  1. free
  2. unimpeded
  3. smooth
  4. at ease
  5. free from worry
  6. fluent
=2 懷 Huái surname Huai
=2 懷 huái
  1. bosom
  2. heart
  3. mind
  4. to think of
  5. to harbor in one's mind
  6. to conceive (a child)