To Act Big, To Be Arrogant, To Be Bossy
intransitive verb, godan verb
Take your dignity and stretch it. Your dignity is so stretched! That makes you feel big! That's why this word is to act big or to be arrogant.
いばる
The reading is from 威 and 張る.
ケンイチは会社のトップのような顔をして威張ってる。
Kenichi acts like the top dog of the company and he's being really arrogant.