Your eyebrows turned into little butterflies and flew away!
Butterfly Eyebrows
Explanation
Explain Bear
Listen up, buttercup. This ain't rocket science. The joke is all about saying something super weird and unexpected. Like, eyebrows turning into butterflies? Ain't gonna happen, unless you've been hitting the wacky stuff. The humor comes from the surprise of something so strange being said like it's normal. Also you should groom your eyebrows more often. This is getting out of hand!