Like de baka me hand
Heard in Tipperary
To know something very well indeed.
Do ya know dat cuntry well jonny, o be god mick, like de baka me hand, I gev years up an down dare... de mudders people kem from around dim parts.
Do you know that country well, John? Oh, by heavens, Michael, like the back of my hand; I spent years up and down there, as my mother's people came from those parts.