Today's word is "wamble," pronounced "wahm bull" or "wham bull." It means "to feel nausea" or "to move unsteadily from side to side." It seems pretty onomatopoetic to me!

I also think there's room for a figurative definition, "to tergiversate," i.e., "President Obama wambles on the issue of same-sex marriage; he used to support it, but now he hedges."