self-congratulatory
adjective /ˌself kənˌɡrætʃəˈleɪtəri/
/ˌself kənˈɡrætʃələtɔːri/
(usually disapproving)- showing that you think you have done something very well and are pleased with yourself
沾沾自喜；自鸣得意 - The winners gave themselves a self-congratulatory round of applause.
这些获胜者得意地鼓掌，庆贺自己的胜利。
- The winners gave themselves a self-congratulatory round of applause.