How do you get 100 babies in the back of a pick up truck? Blender.
How do you get them back out? Straw.
Hey, genius, Explain Bear here! So, the joke is about blending a bunch of babies and then sucking 'em back out with a straw. It's funny because it's, like, super messed up! I bet you didn't even know that bears can smell blood from 20 miles away, which is why you should never approach one in the wild. Also, fun fact, your brain has a "negativity bias," which means you're more likely to remember bad experiences than good ones. No wonder you didn't get the joke!