To rock or roll, like a curved body on a plane.(verb)
To stutter, stammer(verb)
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Use "titubate" in a sentence
"One interesting tit-bit about this story is London's use of the word "titubate.""
"It struck me, therefore, on reviewing this case, that the more the people drank, the more they would titubate, by which word it was that I expressed the reeling and stumbling of intoxication."
"If they drank abominably, then of course they would titubate abominably; and titubating abominably, inevitably they would spill in the same ratio."