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The perfect nickname for your crush when his parents own your local McDonald's.
Did you see Connor vandalizing Burger King's playground yesterday? He's such a McLoser!
McLoser by MyDensity July 18, 2017

Loser Mcloserson 

A nerd who has not yet reached puberty mentally and has not yet expressed an interest in the opposite sex. Mainly of the male species and often plays Megaman or PSP or similar video games and has lame LAN parties and such.
"Hey, that guy's kinda cute. Wanna go talk to him?"
"Are you kidding me? Only from this far away. Up close, he's the epitome of a loser mcloserson!"
Loser Mcloserson by hey797 March 15, 2010

loser mcloserson 

Any guy who is a science nerd, doesn't yet like girls, plays random video games, and talks to teachers for fun. Often named Martin.
Omg that kid is such a Loser Mcloserson

Blocky McBlockerstein

A Female that blocks an individual from Instant Messanger for no aparent reason, usually to avoid possible ackward confrontation.

It is not understood if the Blocky McBlockerstein understands that the one who is being blocked is aware that they are being blocked. The Blocky McBlockerstein may not really care.
"Hey Blocky McBlockerstein, ya, I know you did it, whore!"
Blocky McBlockerstein by chmcarro November 1, 2006

closey mccloserson 

a person who parks too close to another person.
way to go, closey mccloserson. you almost scratched my car.
closey mccloserson by jane February 18, 2005

Broey McBroster 

A name given to a guy who emanates the essence of a bro in its purest form. See definition of bro
Yeah, I did hear about the party Broey McBroster, but I also heard how you *didn't* do that chick, got slapped multiple times, and spent your night puking all over the 4 polos you were wearing.