探头探脑儿 (探頭探腦兒) tàn tóu tàn nǎor

tàn tóu tàn nǎor set phrase to ake a quick look around
Domain: Modern Chinese 现代汉语 , Subdomain: Dialect
Notes: Erhua variant of 探头探脑 (CC-CEDICT '探頭探腦兒')