Attending public schools where teachers interspersed their explanations in certain subjects with the mother tongue at the elementary level afforded one the opportunity of learning some expressions early. Examples abound; the addition sign was aami iropo, the subtraction and multiplication signs were aami iyokuro and aami isodipupo respectively. One other expression I picked in Primary Four at St. Williams Catholic School II, Oke Ado, Ibadan was “adaku mu’ko osan” (one who faints just to have a pap meal in the afternoon). Mrs. Sanni, one of my teachers had excellently used…