跟屁虫 (跟屁蟲) gēnpìchóng

gēnpìchóng noun lit. bum beetle; somebody who tags along; shadow; sycophant
Domain: Modern Chinese 现代汉语 , Subdomain: Zoology , Concept: Insect 昆虫
Notes: (CC-CEDICT '跟屁蟲')