Master batch 

Weighing much larger amounts of a soap recipes oils to create volume in one weighing therefore saving time.

If I multiply my soap recipe oils by 10 (54oz x 10 = 540 oz) it is called a master batch. I can save time for other things like cutting, wrapping, labelling and selling soap.

If you make a master batch you are increasing the amount of soap you can make in a day with less effort.

Master batch by soaplover99 February 5, 2014

Masterbathon 

a masterbathon is a day that you stay home from school "sick" so you can beat off so many times that you are dry and chaffed and can't walk so the next day you have to stay home and do it all over again

Mike: "Damn jimmy has been out of school all week"
Steve: "I konw he must be having a masterbathon"

Masterbathon by LifeguardSteve April 27, 2004

masterbitch

A very nasty woman; the mother of all nasty women. A woman of questionable ethics.

That masterbitch got me kicked out of the theater.

masterbitch by travelmop February 9, 2010

Masterbathe 

The act of masturbating in the shower or bath.

"Dude i was in a dry spell for a while and had blue-balls, so i took a shower and masterbathed"

Masterbathe by memofukka June 5, 2010

masterbathing 

The act of bathing thoroughly and for a lenghty period of time.

If you are in the shower for more than 45 minutes, you are masterbathing.

masterbathing by CaptainOJ June 10, 2007

Masterbatheing 

To jerk off in the bathtub. It only counts if you come in the bath water and continue bathing afterwards.

"Were you masterbatheing this morning when I came over?" "Yeah, and I've been skeeving all day from swimming in my own stew from."

Masterbatheing by Smith Jerrod December 4, 2012

Masterbathing 

When you're taking a bath, jacking off and then bathing in your own semen.

"Goddamn it David, your masterbathing clogged the drain again!"

"Yeah, Kirk seems like a smart guy, but he's just too busy masterbathing to actually teach us."

Masterbathing is more private and intimate than dunk-tank-wanking.

Masterbathing by Tha 69 Boize January 19, 2013