Keurig machines have two little needles: one that pierces the K-Cup from above, and one that pokes it from below. Over time, they get clogged with coffee grinds that look like wet dirt. This is the #1 reason your Keurig decides to become a sculpture instead of an appliance.
Take a paperclip (unfold it, or use a safety pin if you’re fancy) and gently poke into the exit needle—that’s the one at the bottom of the K-Cup holder. Don’t be shy, but don’t stab it like you’re fighting off a ninja. You’ll feel a little resistance, then a puff of coffee dust. That’s the sound of your morning being saved. Do the same to the top needle inside the brew head. You might need a flashlight. Wear it like a miner’s hat if you want, no judgment here.