Revealing mistake: A different horse is used for close-ups and race shots; you can tell by looking at the white patch on Pie-O-My's head, which is much bigger in the close-ups.
Continuity mistake: While standing outside the horse's stall, Ralphie's arms go from being at his sides, to folded across his chest throughout the whole scene.
Answer: I'm not sure which person you're referring to here specifically, but the meaning is someone who makes a habit of constantly going to funeral calling hours (normally 2pm-5pm and 7pm to 9pm) for morbid entertainment or gossip purposes (elderly ladies, for example).
Ryan Grubb