A group (or at least two people) of people, strangers towards each other, who can automatically finish or complete an appropriateresponse to a statement /phrase.
When I sing/chant out loud : "Teenage mutant ninja turtles... heroes in a half shell, "
A person who is the embodiment of garbage. One who posses the physical qualities of garbage. Not one in sanitation, but someone who is garbage. An adjective used as a noun.
Ben: Wow , Mike is being total garbage right now.
Ryan: Ya, he is a Gerund!!
The gerund is the verb form ending in -ing which acts as a noun. The one word riposte "Gerund" by some self-satisfyingly smug pedant indicates an abuse in its usage. It often muddies the intended meaning, and makes one want to lamp the complainant.
"I don't mean to Russia, but I've been getting a lot of Prussia from the home office, for us to be Dublin profits, or we're going to have to Gobi in the red."
"Hey! That's a Swede Geopun!"