沃尔玛的口号理解？

Give me a W!
Give me an A!
Give me an L!
Give me a squiggly!
Give me an M!
Give me an A!
Give me an R!
Give me a T!
Whats that spell?
Wal-Mart!
Whose Wal-Mart is it?
Its my Wal-Mart!
Whos number one?
The customer! Always!
这是沃尔玛的口号，“Give me a squiggly! ”这句一般的网什么没有解释，我知道squiggly这个词意思是弯弯的.，那么它在整段内容中的作用应该怎么理解呢？很急希望很快得到答案，谢谢