Halloween is a huge holiday, especially in the realm of Instagram. In 2019, you obviously need a punny caption to engage comments, boost likes, gain followers, and most significantly, get that spooktacular costume seen. After all, did you really celebrate Halloween if you don't have a cute picture to show for it? Instagram is all about engagement, and these fab-boo-lous captions are a sure-fire way to grab your followers' attention. Don't wait around until Halloween to conjure up a punny caption idea: save these lines on your phone and be prepared for the big day. Now, smile for the camera, say "Happy Halloween," and have a look at the ideas we've mustered up ahead!