I'm gonna go with coconuts because pineapples, they like, they like hurt my tongue sometimes, you know what I'm saying? And it's because they break down the meat enzyme, so sometimes pineapples can hurt your tongue.
Coconuts, definitely. Pineapples contain, I think it's called bromelain? Bromelain? Whatever. Eating too much of it can literally dissolve your tongue. Uh-uh, man, I'll eat coconuts.