a dirty old man

a dirty old man

  (informal)
an older man who shows a strong and unpleasant interest in sex On the top shelf they've got all those horrible magazines for dirty old men.
See also: dirty, man, old
References in classic literature ?
There's a dirty old man described in this book that is a little like me.
I also have a full head of hair but nine times out of ten, if I approach a woman, I am treated like a dirty old man.
But what you refuse to appreciate is that to these young women you ARE a dirty old man.
She said: "Mr A's behaviour was as a result of a stroke he suffered, not because he is a dirty old man.
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