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yen (iou)



yen noun3. US slang & techn. L19.
[Prob. from Chinese yan, (Cantonese) yin.]
Opium.
Comb.: yen hock, yen hok a needle used in the preparation of opium in the form of pills or pellets for smoking; yen hop an opium pipe; yen pock, (collect. sing. & pl.) yen pox an opium pill; opium prepared as pills; yen shee, yen shi an opium pipe.