Maybe in the old days ... I have heard, and hearm young women talking and joking about male totty on many occasions.

I would suggest "tot" as in a Tot of Rum, just the tonic to snap one out of ones monotony and give one a little thrill.

However, a cursory glance at the net suggests various origins, including the possibility that it was a term used to refer to prostitutes, so MtheGM's assessment may well be right.