Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
teeny-weeny is an adjective meaning "(used informally) very small". It carries one recorded sense.
(used informally) very small
“a wee tot”
colloquialism
Definitions, synonyms and semantic relations for teeny-weeny come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.