MERQ is an acronym that stands for Make 'Em Rage Quit. It's very similar to the verb, merk, which means to beat someone, kill someone, insulting someone, or injuring someone. But in this context, you're making them "rage quit" instead.
Bro! I'm beating this kid 6-0 on FIFA! -guy leaves- HA! I made 'em rage quit! MERQ'd. Lawlzlawlzlawlz
to completely own somebody. kill them.
to stab somebody from behind is to merq somebody
Yo dog you merqin with me?
(Yo dog you fuckin with me?)
Man i really merqed the shit out of that bitch last night.
(Man i really fucked the shit out of that bitch last night.