Pulling a Delle

Although commonly associated with a personal computer line, pulling a Delle is actually work performance related.

When one cannot be found for any particular reason, and then returns without offering any form of explanation, only to react with aggression when asked where one was is the quintessential "pulling a delle".

Bellman: Do you know where the fuck John is?

Receptionist: I haven't seen him in 6 hours
Bellman: Damn he's pulling a delle!

pulling a dell

to make something unnecessarily proprietary

Man Asus is pulling a dell with this PC, I'll never be able to upgrade the motherboard without replacing the rest.