Up & down like a whoers knickers
Heard in Wexford and Offaly
Something moving up and down in a consistent or repetitive manner.
Jaysus this road's as rough, I'm goin up & down like a whoers knickers here on the seat!
Good heavens, this thoroughfare is exceedingly uneven. I find myself bouncing up and down upon this seat like a lady of the nights undergarments.