rasterbating 

Resizing an image larger to fit on many pages. These are then printed out and placed side by side to recreate a large poster of the original image. Usually the image is also modified to be made up of small dots, similar to old comics.

"That poster is huge, it must have cost you hundreds."
"No, Wendy taught me about rasterbating, it only ended up costing like $10."

rasterbating by Chris DeHaan May 20, 2008

lasterbating 

Masterbating so much that your dick falls off and that is your last time masterbating because your dick fell off

Jim: hey what were you doing last night?
Me: I was lasterbating.
Jim: Dude, your dick fell off?
Me: Yep.

lasterbating by Vagina McNuggets September 23, 2012

rasterbation 

The act of printing a large image on several pieces of paper to tape together into a poster.

The image was too large for his printer, so he had to resort to rasterbation.

rasterbation by MisterPD May 27, 2006

Rosturbating 

A term used while showing extreme pleasure in one's fantasy sports line-up. Originated in the FX show, The League.

Ruxin: Ohh, look at this board
Jenny: It looks good
Ruxin: Just look at my line up
(Grunts)(Moans)
Kevin: Can you stop rosturbating please?

Rosturbating by BrokeN! September 20, 2010

Fasterbating 

The art of masterbating really fast and cumming within a 2 minute range is called Fasterbating

David: Well, my mom was coming home soon, but I was majorly horny... so I started Fasterbating.

Jim Bob: And...

David: 1 minute 30 seconds

Jim Bob: Nice

Fasterbating by Chaz E. February 28, 2008

masterbating with a cheese grater 

Doing a task that is not a good idea

Moving this piano without help is like masterbating with a cheese grater.

masterbating with a cheese grater by matt1975 September 10, 2012

masterbating 

Expertly jacking off.

Guy 1:Man, I think steve's masturbating again.
Guy 2: From the sound of it, he ain't just masturbating, he's MASTERbating.

masterbating by Sir Fizwheel Humperdink October 5, 2007