An old timey one I heard was ‘I need to see a man about a horse’ and one I’ve actually heard people use was ‘I need to drop the kids off at the pool.’

Lol that’s a funny interpretation. I don’t have an answer for OP but I know what he’s referring to. Slots Lights is an annoying watermark/site on some cam rips of popular movies. Sometimes they’re the only ones available for awhile. Somehow they always get a copy out before everyone else. The watermark is seriously annoying from what I can remember. It was either permanently there and larger than the subtitles or flashing all over the screen every few minutes.