What's WYSIWYG?

WYSIWYG
(what you see is what you get)
(名) 所见即所得, (计算机用语) 应用的特征 (档案在屏幕上出现的形式和将会被印出的形式完全一样)
n. characteristic of applications in which a document appears on-screen exactly as it will appear when printed (Computers)

靠，老外的造词能力再强，也不能随便找个句子就来首字母缩写吧？