A perfectly yellow, ready to eat banana that a woman puts in her purse to eat when she is on the go. However, while in transit, the banana becomes overly bruised, bounced around in the bottomless abyss that is her purse.
Ultimately, by the time the woman gets to her destination, the banana is brown and mushy.
By the time I got to work, my yellow banana turned into a purse banana. I had a few unsatisfactory, mushy bites then I tossed it.