stupid hunk of metal in someones mouth, with is often troublesome. Used to expand the width of your mouth to make space for more teeth, usually followed by braces.
To edit the text in an image and rearrange the letters to spell a nonsensical and often sexually suggestive/explicit phrase. Similar to the recurring gag that appears in the children’s book series “Captain Underpants”, but more risqué. The original “Expand Dong” was morphed from text found on the box cover of Donkey Kong 64.
sbubby is a variant of Expand Dong that focuses on corporate logos.
That “ThiccMints” image is one of the best examples of expand dong that I’ve ever seen.
Code for knee grow, with patella substituted for knee and expand substituted for grow. It is a subtle way of saying negro or to otherwise refer to an African American in a coded way.