A. int. Used as a meaningless refrain or to represent a regular rhythmic sound.
B. n. Rhythmic repetitiveness, esp. in music or verse; an instance of this.
C. adj. Esp. of music or verse: repetitive, trivial, commonplace.
"No matter how rumpty-tum her diction, nothing can domesticate the freakish Land of Topsy-Turvy, dilute the glacial awe of the Land of Ice and Snow, or still the fear invoked by the fucking Land of Smack—an entire world whose quiddity is pain."
- China Miéville, "Forward thinking", 4 & 11 June 2012 The New Yorker