brag about (someone or something)
To boast about someone or something, perhaps to an excessive or unwarranted degree. I can't stand being around Marcus ever since his company became such a massive success. The guy just can't stop bragging about it! You're my daughter, and you have such good grades—of course I'm going to brag about you!
brag about someone or something
to boast about someone or something; to talk proudly about someone or something. He bragged about how selfish he was. Jill brags a lot about her kids.