too big for your boots
UK US too big for your britches informalbehaving as if you are more important than you really are:
He's been getting a bit too big for his boots since he got that promotion.
Thesaurus: synonyms and related words
Showing arrogance and conceit
- (as) proud as Lucifer idiom
- a cut above idiom
- airs and graces idiom
- arrogant
- as if you owned the place idiom
- brash
- cocksure
- egocentric
- egoistic
- egotistic
- get on your high horse idiom
- haughty
- overbearing
- preen
- proudly
- put on the dog idiom
- revolve
- revolve around sb/sth
- self-appointed
- snotty
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