Possibly. A long time ago, some mad bastard on Reddit took a photo of me that I uploaded to Facebook of me in a sweater and a leather jacket, holding a homemade cat mug, except they also photoshopped a bunch of atheist celebrities coming out of my face, and wrote "theist" tears on the mug. So, yes, it's possible, probable even, that you might be a meme, and not know it.