also: ドはで
na-adjective
very flashy; extremely gaudy; super loud
Colloquial intensifier for 派手 (flashy, showy). Used for clothing, decorations, performances, etc. that are over-the-top or garish.
彼女のど派手なドレスにみんな驚いた。
Everyone was surprised by her extremely flashy dress.
あの店の看板はど派手で目立つね。
That shop's sign is super gaudy and stands out, huh.
Means 'flashy' or 'showy' without the emphatic prefix. ど派手 is a stronger, more colloquial version.
Emphatic prefix ど (often written in kana) attached to 派手 (flashy). The prefix ど is a colloquial intensifier, possibly related to the emphatic prefix ど in words like ど真ん中 (dead center).