得意洋洋

déyìyángyáng
  1. joyfully satisfied
  2. to be immensely proud of oneself
  3. proudly
  4. an air of complacency

CEDICT

Entry Composition

1 得意 déyì
  1. proud of oneself
  2. pleased with oneself
  3. complacent
2 洋洋 yángyáng
  1. vast
  2. impressive
  3. self-satisfied
  4. immensely pleased with oneself