Metaboo

Metaboo, Metaboo is a player or person that always uses meta cards, guns, or anything that is known as the community that has a distinct advantage and does not have fun.
Example a player who uses virtual world floodgate in yu gi oh which is no1 meta deck.

Wow that guy is a metaboo always using the meta cards of yu gi oh, have you ever used a non-meta deck in your life?

Sleeper

An old terminology of a stake big long bit of wood with tar on the bottom to hold fencing in used in farms Sometimes is called a sleeper or railway sleeper. To hold custom fencing up 1 stake some tacks and a bit of chicken wire.

Sleeper noun "Here is the sleeper place it in the ground upright and start hammering it into the soil"

BADDIE

Baddie 'noun' ah so that's the baddie. a terminology of which is a guy or girl that is a villian but doesnt fully show the stereotypical villian traits, basically the inbetween of a good guy and a villian. Slightly tainted in there ways but not fully.

There's the baddie.