If you’re looking for some inspiration, might I suggest the Orz?
Weird talking fish aliens whose language can’t always be properly translated. Replacing more alien concepts with words like *happy*, *frumple*, etc.
Part of the fun would be to determine if being called a *happy* *camper* is a good or a really bad thing.
There’s a free open source version you can download at http://theurquanmasters.com/