airs and graces

airs and graces (false ways of behaving that are intended to make other people feel that you are important and belong to a high social class) — манерность, жеманство; выпендреж; ~ понты; ~ пальцы веером (контекст.)

Example 1: In spite of all her airs and graces she had very few talents.

put on airs and graces — строить из себя невесть что; выпендриваться; ~ пальцы гнуть, пальцы раскидывать

Example 1: It's no good putting on airs and graces with me.

Example 2: He was always putting on airs and graces. (CALD)

give oneself airs and graces

Example 1: She's got no reason to give herself airs and graces.

Example 2: I knew you when you were working in a shop! Look at you giving yourself airs and graces — think you're better than us, do you? (CIDI)

see
[понты]
[строить из себя]

Related vocabulary:
(as) proud as Lucifer
a cut above
airs and graces
as if you owned the place
be too clever by half
be up yourself
beneath your dignity
cock a snook at sb/sth
come/get (down) off your high horse
delusions of grandeur
get on your high horse
have a lot to say for yourself
high and mighty
know all the answers
nose in the air
put on the dog
stand on your dignity
the big I am
think the (whole) world revolves around you
throw your weight around/about
too big for your boots