Elvi

1. plural of Elvis.

2. A term for two or more Elvis impersonators

person 1: look at those Elvi
person 2: what the actual fuck are you on about

Dewicide

The name for when you mix multiple flavors of Mountain Dew into one glass/cup/whatever can store drinks

person 1: Hey i just bought 15 flavors of Mountain Dew
person 2: You should mix them all for a Dewicide