Tinky-tonks

The title says it all.  When out with Aidan and he use the toilet before we leave, I used this expression without even realizing and only later - when he recounted it to Kris (finding it VERY funny) - did I realize I said it.

Come to think of it, and keeping with the bathroom humour, the old boy was the only person to regularly use the word piddle regularly, though no doubt Paul does now...