Hey guys Alex is here to explain! The joke here starts out with text that says “nobody:” followed by “doorbells:” This is meant to show that what’s about to be shown later in the meme is unique to doorbells alone. In the image, we see the letter “D” inside of a “G,” and next to that there’s the letter “D,” on top of the letter “G.” This may look extremely confusing at first but it’s actually quite simple. The first part shows “D in G” which is the word “Ding” if you put it together. The second part then shows “D on G” which results in “Dong” if you put it together. So the meme is saying that doorbells make the sound “Ding Dong” which is perfectly true.
And if you’ve read this far, you might as well follow! I explain memes like this all the time :) @alexplains_