thrum vs wah-wah

thrum

noun
  • A thrumming sound; a hum or vibration. 

  • Small pieces of rope yarn used for making mats or mops. 

  • Any short piece of leftover thread or yarn; a tuft or tassel. 

  • A fringe made of such threads. 

  • The ends of the warp threads in a loom which remain unwoven attached to the loom when the web is cut. 

  • A spicy taste; a tang. 

  • A threadlike part of a flower; a stamen. 

  • A tuft, bundle, or fringe of any threadlike structures, as hairs on a leaf, fibers of a root. 

  • A bundle of minute blood vessels, a plexus. 

  • A mat made of canvas and tufts of yarn. 

  • A shove out of place; a small displacement or fault along a seam. 

adj
  • Made of or woven from thrum. 

verb
  • To cause a steady rhythmic vibration, usually by plucking. 

  • To insert short pieces of rope-yarn or spun yarn in. 

  • To make a monotonous drumming noise. 

  • To furnish with thrums; to insert tufts in; to fringe. 

wah-wah

noun
  • A wavering sound produced by means of a movable mute or by electronic means 

verb
  • to make a wah-wah sound 

intj
  • The sad trombone sound, used to indicate failure or disappointment. May be used mockingly; also written wah wah and womp womp. 

adj
  • Modifying the resonance of musical notes to produce the effect of a human voice. 

How often have the words thrum and wah-wah occurred in a corpus of books? (source: Google Ngram Viewer )