Masterblock 

This is the act of cock blocking yourself. This can be done for a variety of reasons including, but not limited to; fidelity requirements, embarrassment, awkwardness, sobering up in the nick of time, etc. Doesn't happen very often and typically results in feelings of confusion and possibly guilt.

The hottest chick ever hit on me last night at the bar, but with my wife home with the kids and no one else to save me, I masterblocked by donning a helmet and a hula hoop, while running out the door screaming like a little girl.

Masterblock by 00Snort00 October 18, 2011

Masterlock 

Poorly made shit for shit lock. There are several ways to unlock it without picks. It's possible and extremely easy to make a shim out of a soda can and unlock it.

Jack thought his bike was secure with his Masterlock, but the next day someone guessed his combination in 3 minutes and rode off into the sunset.

Masterlock by A man in a suit October 10, 2005

Masterblogging 

blogging by yourself

Jim is at home masterblogging again.

Masterblogging by Tonyp126 February 19, 2009

Masterbooking 

Hitting the "like" button on your own Facebook status.

Have you noticed how William always "likes" his own status? It's like he's masterbooking or something.

Masterbooking by lrchtr December 7, 2009

masterblanket 

the sickest most pimping badass youtube channel to ever exist on earth. this channel is constantly beasting.

my favorite youtuber is deferentially masterblanket.

masterblanket by masterblanket February 14, 2012

Masterlocked 

A way of attacking someone in prison. You get hold of a padlock via paying off guards of stealing one of a gate and put it in your sock. Get 8 other people to do this and then beat the victim to death with them.

Did you hear? Dave got masterlocked!

Masterlocked by udking420 June 28, 2020

Masturblacktion 

The process of muting a Rebecca Black YouTube video to be able to masturbate to it.

Father: "Son, I feel like we need to talk about something..." Son: "Dad I saw you doing some masturblacktion last night."
Father: "Don't tell your mother."

Masturblacktion by Mr. Word Knower July 22, 2011