"Roman" means catholic gothic, cusped window or panel heads in the perpendicular architecture ; (2) — jessamine, the syringa, philadelphus coronarius ; (3) — plant, («) the good king henry, chenopodium bonus-henricus ; (b) the sweet cicely, myrrhis odorata ; (4) — willow, the lilac, syringa vulgaris. It is one of many casual words teens pick up from friends, social media, music or sport, and on its own it carries no particular warning. If you hear your teen use it, it is fair to ask what they mean by it in their friend group, since meanings drift quickly. Asking out of curiosity rather than alarm tends to keep the conversation open and useful.