Definition of too-too in US English:

too-too

adverb & adjective

dated, informal
  • Used affectedly to convey that one finds something excessively annoying or fatiguing.

    as adverb ‘it had become too-too tiring’
    as adjective ‘it is all just too-too’
    • ‘Being too-too hungry for info isn't always good.’
    • ‘Build an outfit around one special jeweled item, something that's a little too-too for day but can go the extra party-hardy mile.’
    • ‘Gadsby uses fish of wonderful quality and freshness, but when faultless seared yellow-fin tuna slices meet sweet corn-and-chestnut risotto, plus a too-too truffle-oiled tomato and saffron broth, the center cannot hold.’
    • ‘They have only two numbers together, and the film concludes with the too ghastly ‘Shall We Dance’ number, featuring, for the most part, not Ginger but the too-too ghastly H. H.’
    • ‘I mean, if you're reading this blog on a regular basis, you're probably not too-too squeamish, but if you just got here - well, you've been warned.’
    • ‘But I think it's one of those reminders from the universe: don't get too-too comfortable in your little groove.’
    • ‘Nothing too-too heavy, it's a shoot, not a scene.’
    excessively, overly, over, unduly, immoderately, inordinately, unreasonably, ridiculously, to too great an degree, to too great an extent, extremely, very
    View synonyms

Origin

Late 19th century: reduplication of too.

Pronunciation

too-too

/ˈto͞oˌto͞o//ˈtuˌtu/