Of
Irish origin, coming from the Kerry/
Cork region, predominantly used in order to signify one's complete lack of interest in any given topic.
Akin to what one
may describe as a "fuck it" attitude.
Can also be used as a precursor to an aggressive reply when asked a question
-"Whats the score in the Ireland
game John?"
-"Yerra"
-"was yer wan any good in the
sack?"
-"yerra, would you ever go away and
fuck yourself"