multifapping 

The act of masturbating to several erotic / pornographic subjects at the same time.

"Yesterday there were four of my favorite models playing on cam at the same time! I was multifapping like a motherfucker."

fap multitasking fapzapping

multifapping by Zozzone March 17, 2011

multifapping 

Masturbating while playing StarCraft 2.

I'm going to multifap when we play tonight.

I was multifapping when we played last night.

multifapping by Code Name: Dutchess December 1, 2011

multifailing 

What actually is happening when some people think they are mutitasking. Often involves long periods of silence or saying "uuuummm" on the phone with manic keyboard tapping in the background.

"Due to the front desk assistant's multifailing, I was put to the wrong voicemail twice"

multifailing by Chuck Lindo July 14, 2007

Multifacing

When you have multiple social networking sites open on your computer monitor.

The network guys blocked his access to the internet for excessive multifacing during office hours.

Multifacing by C#Note March 9, 2014