mastersesh 

the ultimate uninterruptable masturbation session

i locked the door, turned off the lights and threw on some quality internet porn. not even julius would be able to interrupt this mastersesh.

mastersesh? masterbest!

mastersesh by yourname.001 March 5, 2011

masterbesober 

Being sober from masterbation.

Guy 1: Hey stop checking out every chic that passes by

Guy 2: Give me a break. I've been masterbesober for days

masterbesober by master son April 28, 2011

Masterschlong 

A device like no other. Easily identified by it's considerable length and breathtaking girth. Either seen as either a reward or punishment depending on the orientation and tastes of the recipient.

1. Excellent work Steve, that'll definitely earn you the Masterschlong in the office next week.

2. You're such a cunt, when we get home you're gonna get Masterschlonged.

Masterschlong by The masterschlong August 20, 2013

Masteress 

The female form of a master.

"Thank YOU spaghetti masteress!"

Masteress by Joan-Marie October 3, 2008

Master Sesh 

When a person or group of people smoke(s) a massive amount of marijuana in one sitting.

Stoner 1: "Homie, my friend and I had a master sesh last night. We smoked a quad between the two of us."

Master Sesh by JDRstoned August 17, 2009

mastercest

if you from the past or future were to come to the present time period through time travel and fucked yourself.

omg! did you hear how kennedy did mastercest! never heard of anyone doing that before!

mastercest by guccigal12345 November 28, 2018

Mastereth 

A man whomst makes videos on the internet, often helping out other creators. Very long sentences.

Mastereth cannot make convincing monkey sounds.

Mastereth by GabeTYJ December 20, 2019