A species of moth. It was named this way because they are orange-ish in color, have yellow hair-like scales on their head, and the males have unusually small penises.
Scientist 1: Oh look, a moth. What species is it?
Scientist 2: It's a Neopalpa Donaldtrumpi.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.