Hullabaloo was one of the early "chant" yells which the students used to do in the stands when the opponent had the ball. They would repeat the phrase over and over (rattle-de-thrat and chigaroogarem were also used). Such yells, which were probably our earliest, were a memory when Wilson was in school, and his inclusion of them was a bow to Old Army.
By the way, the "first verse" listed was not the one he wrote while on guard duty on the Rhine. The original verse was the one about t.u. He had a job at the Palace Theater in Bryan after he returned, and his quartet sang the song during intermission. The War Hymn was sung for several encores and was eventually arranged for the Aggie Band by the then-bandmaster George Fairleigh. Col. Dunn arranged the version used today shortly thereafter. The "first verse" was eventually written by Wilson after pressure from school officials, who worried about a song specifically about our rival, but he always maintained that the "Goodbye to texas university" verse was THE War Hymn.
Texas Fight (which was called Texas Taps until the end of the '50s) goes:
Texas Fight! Texas Fight!
And it's goodbye to A&M.
Texas Fight! Texas Fight!
And we'll put over one more win.
Texas Fight! Texas Fight!
For it's Texas that we love best.
Hail! Hail! The gang's all here!
And it's goodbye to all the rest.
...but, as you know, we're obsessed with them because we mention them in our song.

[This message has been edited by BQ Mole Man (edited 8/12/2002 9:01p).]