The initial reaction mass is separated and you work with the extracted oil and the following washings pooled together.Notice please how the procedure reffers to what is being treated with HCl as oil.
Washing can be meant as extracting.For example after separating you add more toluene to water layer, shake well, wait to separate, put in funnel, separate.Another thing that can be meant is say you have a glass with freebase in it, you pour it off somewhere else, but there is still material on the glass, you add toluene, "washing" the glass of any remains of product.