A majorly boggerish irish term. It's used as a reaction to surprising news or dreadful news etc. Meaning "By Jesus!" or "By dad!".
"Hey did ya hear Mary down tha road lost a couple 'o sheep to the shtorm?"
"Arah begorrah! Poor woman!"
"Arah begorrah! Poor woman!"
by Secksasaurus September 17, 2009