crow about (something)
1. Literally, to squawk, as of a rooster. What is that rooster crowing about now? It's not even daylight yet!
2. By extension, to brag or boast about something. You know, no one likes it when you go around crowing about your successes in business.
crow about something
and crow over something 1. Lit. [for a rooster] to cry out or squawk about something. The rooster was crowing about something—you never know what.
2. Fig. [for someone] to brag about something. Stop crowing about your successes! She is crowing over her new car.