禁果 Words — Dong Chinese Dictionary

jìnguǒ

forbidden fruit

偷尝禁果 tōuchángjìnguǒ to secretly taste forbidden fruit

literally "to sneakily taste the forbidden fruit"; figurative for engaging in premarital or underage sexual relations in secret
吃禁果 chījìnguǒ to eat forbidden fruit

To do something that is forbidden or restricted.
尝禁果 chángjìnguǒ to taste forbidden fruit

literally "to taste the forbidden fruit"; figurative for engaging in premarital or underage sexual relations