How do you say Eat drink and be merry in the Gaelic languages?

There isn't a single, perfect equivalent of "Eat, drink, and be merry" that directly translates across all Gaelic languages. The phrasing needs to be adapted to the specific language's structure and idiomatic expressions. However, we can offer approximations:

* Scottish Gaelic: A direct translation is difficult. You could piece together something like: "Ith, òl, agus bi aoibhneach" (Ith = Eat, òl = drink, agus = and, bi = be, aoibhneach = merry/joyful). However, this sounds a bit literal. A more natural-sounding, though less literal, expression might be needed depending on context. Something like "Bithibh toilichte agus còrdaichte!" (Be happy and contented!) might be more suitable for a celebratory occasion.

* Irish Gaelic: Similar to Scottish Gaelic, a direct translation ("Ith, ól, agus bíodh fonn ort!") is possible but sounds somewhat stiff. A more natural phrase would depend heavily on the context. For example, "Bíodh spraoi agaibh!" (Have fun!) or "Bainigí sult as!" (Enjoy yourselves!) might be more appropriate depending on the situation.

In both cases, the spirit of the phrase is more important than a word-for-word translation. The best translation would depend on the specific nuance and intent you want to convey. A native speaker would be best placed to offer a suitable and natural-sounding phrase.