addict (esp. a heavy smoker or drug addict, often jocular or disparaging)

craving; addiction

erhua variant of 癮頭|瘾头[yin3 tou2]

to get into a habit; to become addicted

to satisfy a craving; to get a kick out of sth; gratifying; immensely enjoyable; satisfying; fulfilling

drug addiction

to be addicted; addiction

sexual addiction