1) A female mail courier or postal worker. 2) A word to describe a female postal worker, created from the combination of the words Mail and Mam. 3) The opposite of a mailman. The same combination can be applied to other professions ending in "-man" to convey that the professional is a women. Such as in the words "Firemam" and "Policemam"
word orgin: I pointed to a women postal worker walking up my drive-way when I was 4 years old, and told my mom the "mailmam" was here. Yeah I know it is a little cheesy but hey it is kind of cute
"I wish the damn mailmam would hurry-up, I'm expecting a package!"