After eating that spoiled seafood last night, I had a griping pain in my stomach.

griping 是动词 gripe 的现在分词形式。gripe 本意是"紧握、抓住"，引申为"（肠胃）剧烈收缩、绞痛"的意思。这里用现在分词形式作形容词，描述胃部像被紧紧抓住般的疼痛感。