jì​shēng

freeloading

寄生 jì​shēng
freeloading verb
to live by taking advantage of others or depending on them for survival

He is already an adult, yet he still lives like a parasite at his parents' house.

parasitism noun
to live in or on another organism as a parasite

This special plant parasitizes pine trees and absorbs their nutrients.

Frequency

Movie subtitles
1.67 per million appears in 1% of films
Written text
2.52 per million

Sources

Definitions
CC-CEDICT