Crocodile´s Secret? (Spoilers for Impel Down)
Hey so for the longest time I´ve thought that the "Crocodile used to be a>! woman!<" theory was kinda... uninspired. Like the "twist" would be too obvious for Odda. Introducing the entierty of >!level 5.5 and New Kama Land!< and then have Iva threaten Crocodile with a secret from his past... after all we saw that arc it would be too obvious (imo) for Crocodile´s secret to be that he asked >!Iva to make him a man!<.
Also unless his past identity had a personal reason to disappear (like having some conections he wanted to ditch or the wrong kind of attention) theres not really a good reason for Crocodile to be so secretive about it.
So MY personal theory for the past few years has been this. Crocobald.
He asked Ivankov to inject him with Hair Growth Hormones so that he would stop balding.
So Iva probably has a picture of him back when he looked like the pictures provided.