It's normal to ask questions when vocabulary pops up in forums that is not taught at school. Or do you think that the french equivalent of "spit-roasting" is going to come up in conversation in your french lessons? I have considerably enriched my vocabulary over different forums the past year. I daresay that most of the things I learned will never be taught in normal classes and even if some of them should perhaps better been left alone I dont regret a single one of them... when in doubt I always want to understand. If you want more embarassing questions just ask Swampy to continue posting in the forums the way he did today and I'll make sure to oblige you and ask them.