It is a vulgar word which can be directly translated to mean pussy. (woman’s external genital organs)

The word is considered vulgar and you should avoid using it.

Wait a minute, did @BarryBateman just call @Julius_S_Malema a poes there at the end of this clip? Am I reading his lips wrong? https://t.co/DaNc4c6sFQ

— Sizwe Dhlomo (@SizweDhlomo) September 10, 2019