qwerty

the slang word used to fill that gap when you are simply speechless, no matter the context of the situation, when no other word will do it justice.

friend: "go look at the comment Will's girlfriend just posted on his facebook wall"
you: okay
friend: did you see it?
you: umm yes... qwerty

or

mom: your package came in the mail today
you: QWERTY!!!

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