Phasourite

People will discover something new or recently discovered, or it might just be new to them.
Suddenly they start calling it,
"My new Favourite (animal/object/activity)!!"

Sometimes it's legit and sometimes it's just a Phase.
So in the mean time, call it your Phasourite!

Omg Olms are my new phasourite animal! They're like axolotls with no face.