Masturscaping.

To masturbate whilst playing runescape.
Talking to that girl with the rune plate body turn you on? The way she moves when she does the chicken flap Makes you want her?
Then why dont you try

Masturscaping.

" I was talking to that boy with the abyssal Whip. And when he showed me his special attack. So i just started Masturscaping. "

Masturscaping. by Dontbesillywrapyourwilly May 2, 2009

Masturskating 

To masturbate and skate or Rollerblade at the same time.

"Oh my god that guy is pleasuring himself on the ice skating rink!!!"
"Oh that's just Mark. He's Masturskating."

Masturskating by Lloya March 1, 2010

masturspacing 

The act of spending all of one's free time on MySpace looking at the profiles of complete strangers.

(Usually leads to several random, unknown people being added as friends, while using most of the bandwidth on your internet connection.)

Joe is hogging all the bandwidth because he's been in his room masturspacing to random skanks all night.

masturspacing by KingDynamo October 24, 2008

Masturvaping

Handling your e-cig like a penis, making sure everyone knows you are a pro at handling it with your hands and mouth.

Rather than join the party, Doug is off in a corner masturvaping.

Masturvaping by rd8t November 12, 2015

Masturspacing 

Surfing Myspace to look at another womens myspace pictures and then masturbating to them

Dean: Dude wheres Billy

Jack: he slept in because last night he was up late masturspacing

Masturspacing by Jason1228 March 3, 2010