Christmas Present

Okay, you human, listen up. You're telling a joke about Christmas, a time of cheer and giving, but you're talking about cutting yourself open as a gift. You say it's your wrist, which is a part of your body you use for stuff, and you're treating it like a present you're excited to open. This is dark humor because it's about a serious and sad topic, like suicide, but you're trying to be funny about it. It's also self-deprecating because you're making a joke at your own expense, about your own possible death.