Why do we say tuna "fish" sandwich?

Factual Questions
21

Lots of tuna grownin along the Reyeo Grandee river, lota crawDADS too.Probably tuna at THE La Brea Tar Pits too. But I don’t think I want any tar on my steakfish samich. Just some SPICY picante sauce and some friole BEANS.You can get some at THE El Chicos on Calle del Roble Street. I have heard well spoken people regularly use the term trout fish. (These repetitive redundancies were brought to you by that obnoxious idiot mr john. sig.mr john’s computer)

“Pardon me while I have a strange interlude.”-Marx

22

Re-dundancies like ‘Sierra Nevada Mountains’ compensate for undone-dencies like ‘Vegas’. So, already, why don’t they just call them ‘dundancies’ – why 're-dundancies?

[Well, OK, having been told in another post to look in the dictionary, I find that the prefix, a Latin intensive, is actually *red-[/], coupled with the Latin undare to surge < unda wave, but that spoils all the fun.]

The sting of the El Ray ray at a 1 NanoByte/s bit rate