Multitaskhole 

A man with two bluetooth earpieces (one in each ear), a blackberry, a cell phone, a pager and an iPod.

That guy in the Microsoft hat sure is a multitaskhole.

Multitaskhole by Jannele January 5, 2008

multitaskless 

adjective
pertaining to an inability to concentrate on more than one task at a time.

Tori: "I just needed him to pick up some milk on his way home with dinner, how hard could it be?"
Aimee: "Oh well, you know Dave, he's completely multitaskless!"

multitaskless by CaptDaf January 21, 2013

multitaskable

The ability to multitask, available to be tasked with many
things, (taskable)

Jim must be multitaskable in order to run his business well.

multitaskable by william rose September 22, 2006

multitaskable

the adjective for multitask

the boss is so multitaskable

multitaskable by VV Games on YouTube March 8, 2022