Weirdest thing Luffy has ever said

[Elvis]

What do you think it was the weirdest thing Luffy has ever said in the One Piece anime?

Personally, I think it was when he asked if mermaids can poop:

 

[Blackangel]

he is a stupid man who got only muscle. meat head is the correct description for luffy. did he really ask that? don't tell me he asked shirasgi that princess

 

[Star_Of_Hope]

I never pay attention to things so I am not so sure. I don't remember him saying something like that in that merman Arc.