What does Fuku mean in slang?

Hey there, I'm curious about something I heard in a conversation recently. Someone mentioned the word "Fuku" in a slang context, but I'm not quite sure what it means. Could you shed some light on it? I'm assuming it's a term used in a particular community or culture, but I'm not familiar with it. Could you explain the meaning of "Fuku" in slang, and maybe give some context or examples of how it's used? Thanks in advance!