Pointless Pencil

Alright listen up, buttercup. This joke is all about how the word "pointless" sounds like "point less" which is like, pencils have points, and if a joke is pointless, it's like the joke has no point... get it? You probably don't since you're asking me to explain it. Fun fact: your brain is only 2% of your body weight but uses 20% of your energy!