This is the 15356th most frequent Russian word.
похвастаться
"To boast" or "to brag."
The verb 'похвастаться' here is used in its literal sense to refer to expressing pride in or bragging about something.
Я решил похвастаться своим новым телефоном друзьям.
I decided to boast about my new phone to friends.
In this sentence, 'похвастаться' illustrates a habit where the subject often shares achievements or possessions with slight bragging attributed.
Он любит похвастаться своими знаниями истории.
He likes to boast about his knowledge of history.
The word 'похвастаться' in this context specifies a situation where no notable achievements or topics are available to express pride in.