What is Gerrerr?
1.
form of exasperation - an evolution from the classic text speak "Grrrrrr" usually said with attitude: eg: "g'RERR!!!"
Emphasis on second syllable directly relates to the seriousness of the incident.
"That man has just jumped the queue; gerrerr!!"
"I've been on hold for 20 minutes; gerrerr!!"
See