Dog's Preference for Skeletons

Listen up, buttercup. This joke is about dogs liking skeletons because they are "boneheads." See, "boneheads" sounds like "bone heads," which means they are dumb like you. And skeletons got bones. The joke plays on the similar sounds of "boneheads" and "bone heads," which is funny to some people. I bet you thought boneheads had something to do with your love life.