At first I was skeptical and assumed that you had not realized the parent comment to which I had replied. But I checked and was still skeptical when I checked 'monkey' but indeed there was an alternate definition that was numerical. However I can't find one for 'donkey'. But maybe the parent's memory is faulty or more recent slang has added these numerical denotations in a greater context than just the parent's past workplace.

One of those lemmata casts doubt on the veracity of "Port Out, Starboard Home." I also enjoyed the dual meanings of pot-walloper, similar to "cutting coupons" shifting semantics at opposite ends of the NRS social grades.