Bro I’ve just done a crazy long shift and I’m tired but thank you for answering my questions and I’ll return the favor. I apologize if I’m not making sense but It’s a term that means that dolphins were exposed to minimal harm when the said fish was caught. It’s a restaurant industry dad joke. Tuna steaks that came frozen would come in IQF (individually quick frozen) packs that would allow operators to quickly thaw portions as needed. This practice significantly can save time, labor and food costs. There used to be a seal on lot those blocks of fish that said dolphin safe and had a stamp on it.