Idle
internet-surfing,
game-playing or practicing of a
casual hobby--what someone does when they are done with or avoiding work. Temporary busywork or diversions. Can be used as a descriptor, and a verb.
"Yeah, I finishing my work, I think I'm just going to spend my
time noodlin' now."
"I'm such a procrastinator. I spent my
time noodlin' instead of writing the
paper."