понты раскидывать, на понтах (e/u)
см.
[airs and graces]
~ [throw one's weight about]
~ on one's [high horse]
high horse attitude
[строить из себя]
...
[full of oneself]
all hat, no cattle (showing off and being intimidating, but not having anything to support themselves )
{UK}all fur coat and no knickers (of a woman, all superficial appearance and no real substance beneath)
{UK}all gas and gaiters (pompous)
all mouth and (no) trousers (someone with airs and graces, but no real class; someone who speaks highly of themselves but can’t support it with actions )
all talk and (no) trousers (a person who shows off verbally but is weak in actions)
braggadocio (empty boasting, arrogant pretension; a swaggering, cocky manner)
Example: He is such an arrogant jerk, I swear!
см.
[пустозвон]