scruff	niechluj, brudas
pastel	in pale colour
power outfits	formal clothes to make you seem powerful
frumpy	bez gustu, nudny
outfit	set of clothes
dress codes	accepted way of dressing
dress down	wear less formal clothes
smart-casual	informal but clean,tidy, stylish
dressy	szykowny, wytworny, elegancki
skimpy	skąpy, kusy / close-fitting, using less material
baggy	loose
snazzy	modern, stylish / odlotowy :D
to be dressed to kill	attract people's attention (sexually)
off the page/rack	ze stojska ? (!)
on the high street	z ulicy ? (!)
all the rage	very fashionable
in the height of fashion	extremely fashionable way
up-to-the-minute	most recent
set a new trend	started new fashion
ahead of your time	new ideas before they are fashionable
catch on	become popular
slave of/to fashion	sb strongly influenced by fashion
(to speak) off the cuff	mówić z miejsca, z marszu (bez przygotowania)
to be hand in glove with someone	close working relationship with
cloak-and-dagger	potajemny, sekretny
to have/take the shirt off someone's back	someone's last possession
do sth on a shoestring	spending as little as possible
without frills	simple and plain / bez bajerów
to put someone in a straitjacket	restrict someone's freedom
to wear the trousers	to be the dominant partner in marriage (woman!)