Vespling
The name of someone who's a fan of the V-Tubers Ceres Fauna and Vesper Noir (Vestie + Sapling).
Me (Sapling): I've been watching Vesper lately, I think his zatsudans are great.
Friend: Oh, so you are a Vespling now?
Me: Yeah.
Friend: Oh, so you are a Vespling now?
Me: Yeah.