v (Cockney low) want to know all the ins and outs of a duck's ass q.v.
WANT TO KNOW ALL THE INS AND OUTS OF A NAG'S ASS
Англо-русский перевод WANT TO KNOW ALL THE INS AND OUTS OF A NAG'S ASS
Dirty English-Russian vocab. Англо-Русский словарь непристойных выражений. 2012