奥歯 (おくば, okuba) Japanese meaning: back tooth | KotomoraExpressions
奥歯に物が挟まるbeat around the bush; not speak frankly; talk in a roundabout way
Let's chew well with our back teeth.
Etymology
Compound of 奥 (oku, 'inner, back') and 歯 (ha, 'tooth'), with rendaku voicing of は to ば.
