Merriam-Webster defines the term "home-and-home" as taking place alternately on the home grounds of competing teams or participants engaged in successive contests or contests related by being on the same schedule. This is how I hear the term used these days, and it always puzzles me, because I remember Coach Bryant used the term "home-and-away" to describe, for example, a series against Nebraska where we would play one at home and one at their place. "Home-and-home" was used for series against, for example, Southern Miss, where we would play both (or more) games at home for obvious financial reasons. There was no expectation or reason to go to their small stadiums and lose money.
This is almost as bad as the emergence of the ridiculous-sounding phrases such as "the Crimson Tide are ...," where writers insist on making the Crimson Tide plural, when it is literally, figuratively and philosophically singular. The pluralization of Tide is as incorrect as saying "high tide tomorrow are 1:30 p.m." Did Blondie sing "the tide ARE high, I'm holding on ...?"
Talking about offensive language penalties? I propose a 15-yard penalty and ejection for both grammar infractions.