A drunken schoolgirl kneed and kicked a man in the groin because he mispronounced her name, a court has been told.

Megan Jane Conroy, then 17, from Sandstone Point north of Brisbane, sobbed in the dock in the Brisbane District Court as she pleaded guilty to one count of assault occasioning bodily harm.

The court was told she arrived home about 1am (AEST) on May 13, 2006, to find the complainant and a group of her mother's friends celebrating a birthday.