waddle vs wamble

waddle

verb
  • To walk with short steps, tilting the body from side to side. 

  • To move slowly. 

noun
  • A squat, swaying gait. 

wamble

verb
  • To wobble, to totter, to waver; to walk with an unsteady gait. 

  • To twist and turn; to wriggle; to roll over. 

  • To feel nauseous, to churn (of stomach). 

noun
  • An unsteady walk; a staggering or wobbling. 

  • A rumble of the stomach. 

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