too big for one's britches
The phrase "too big for one's britches" is a 19th-century idiom from the United States, describing someone who is overly confident or arrogant.
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Definition
C1General
(informal, idiomatic)Having an exaggerated sense of one's own importance or abilities.
Example
- Ever since his promotion, he's been acting too big for his britches.
C1General
(informal, idiomatic)Being overly confident or arrogant, often in an annoying way.
Example
- She's getting too big for her britches, always bragging about her achievements.
Similar
Terms that have similar or relatively close meanings to "too big for one's britches":
above oneselfhave eyes bigger than one's stomachhigh and mightyout of one's depthoverplay one's handlarger than lifebeyond one's pay gradebig talkget ahead of oneselfout of one's leaguebig-boy pants