as heard on the Discovery Channel's "Gang Wars: Oakland": Filed-down car keys used for auto theft

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.

People referencing something they find funny without understanding what the joke is, or where it comes from; like babies laughing at jingling car keys (Examples: Doge, Pepe, Big Bang Theory Show, "fist me daddy"; memes and references with no real meaning

When a person makes a reference to something they think is hilarious without knowing why it's funny (such as memes like Doge and pepe). It takes no effort to entertain that person like jingling keys in front of a baby. A counter meme.