If I've got to be a back number I want to romp right back far enough to have some fun out of it.
If I have I'm a back number—and I'd a great deal rather be dead.
I am a back number; I am out of date; I was a loafer and a blackguard.
Yes ma'am, I've read it and I've found out what a back number I've been.
Bob Pillin walked beside him, thinking: 'Poor old josser, he is gettin' a back number!'
Jim realized that he was a back number, but he hung on just the same.
A man of large experience and important achievement said to me not long ago: "I am afraid I am getting to be a back number."
"Oh, well, it's not so bad for a back number," answered Matt.
You once nobble that, congregation, and a buck joyride to heaven becomes a back number.
He's a back number, and I'll tell her so, too, if she asks me to say any of her old pieces.
Someone or something out of date; has-been: Mr Stale is a back number (1880s+)