为什么“ give me five”是击掌的意思?

为什么“ give me five”是击掌的意思? give me five与five me a five 的区别?give me five 是击掌的意思，give me a five 是给我五块钱的意思， GIVE ME FIVE give me five give me five Give me five , Give me five - give me five give me five give me five “year,give me five. hey,give me five.为什么要这么叫? give me five与five me a five 的区别? give me five怎么读 give me five怎么读 Give me five more minutes give me five 是真什么?他的中文意思! give me a kiss 与 give me kiss 有什么区别?平时都是用give me a kiss ,give me kiss 是同等意思吗?那give me five...又能不能说为give me A five