dress for success

dress for success (to dress immaculately wishing to impress sb very much and win sb over ) — одеться как на парад; разодеться как на свадьбу; разодеться в пух и прах

dressed to the nines / dressed to kill (dressed up; wearing clothing that makes you look great, usually your best clothing) — одетый с иголочки; празднично, торжественно одетый; нарядно одетый

Example: "Where are you going, dressed up to the nines?"

dressed like a dog's dinner (over dressed in a showy way) — разряженный в пух и прах; вырядиться

see also
[dress sense]
[all dolled up]