Origins of ._.XD Pitbull meme?, General Discussion

I've seen these set of images spread across the web and I wonder, what's the origin? I'm aware of a video claiming to be the original but it has no sound. D

How has your life changed after adopting a pet? - Quora

39 30 willamette week, may 29, 2013 by Willamette Week Newspaper - Issuu

Maddy the Pitbull / Perro ._.XD

View topic - 🐾 the bark park - forms & discussion - Chicken Smoothie

Mr. Krabs SiIvaGunner+BreezeWiki

MortalKombat Deadly Alliance was a Turning Point in #MK History, and , mk deadly alliance ad campaign

Maddy, Midnight Horrors Wiki

DCS F-15C Combat Guide for Beginners - Articles - Mudspike Forums

Trumpet, Nico's Nextbots Fanmade Wiki

Maddy, Midnight Horrors Wiki

SMAPI - Stardew Modding API at Stardew Valley Nexus - Mods and community

I Hate Dogs and I Am Not a Horrible Human Being - The Observer