搖頭晃腦 (jiu4 tau4 fong2 nou5) — look pleased with oneself; wag one's head in self-conceit in Cantonese
jiuˎ₄搖tauˎ₄頭fongˊ²晃nouˏ₅腦简 摇头晃脑
Mandarin Pinyin: yao2 tou2 huang4 nao3
Meaning of 搖頭晃腦
nounlook pleased with oneself; wag one's head in self-conceit
nounwagging one's head smugly, looking pleased with oneself (self-conceit)