Feel Free To Add More To It If U Want - Tumblr Posts

What if Luffy got a tattoo that was ASL in memory of Ace and Sabo in the same spot Ace had his, but it's pre-dressrosa and everyone just assumes the "S" is for Shanks. Everyone knows Shanks because Luffy's mentioned him several times. Each crew member has asked why his hat means so much to him, so he tells them all about Shanks. He thinks Sabo is still dead, so he never talks about him and never tells everyone what the "S" actually stands for.

Fast forward to the end of Dressrosa and Luffy has a crisis because there is a giant x through the S and Sabo is definitely very much alive now.