Thumbs - 50 S Mature

Is it a phrase from a or a specific literary collection ?

If you can provide a few more details or the context where you saw it, I can help you track down the full "piece" or explain its meaning. 50 s mature thumbs

To help you better, could you clarify what this refers to? For example: Is it a or a short story? Is it a phrase from a or a specific literary collection