Not sure if there's already a game like this, but i'm starting this up anyway XD

The game is called Chain Reaction. You post a two-word post, and the next poster has to use the second word as their first word.
I sincerely suck at explaining stuff so here's an example:

Poster 1: Base Ball
Poster 2: Ball Hog
Poster 3: Hog Warts

I'll start us off!

Key Board

Sign Ups

”Sometimes people think if they love a broken person enough, they can be what finally repairs them, but the problem with that is the other person just ends up broken, too.” -Colleen Hoover

Up Grade

Grade A

A Plus

Plus Sign

Sign Language 

Language Class

Class room

Room Service

Service Dog

Pound Sand

Sand Castle

Castle Doctrine

Doctrin[al] Belief

Belief System

System Process

Process Server

Server Station

Station Wagon