IAtionary: Brain

Brain [breyn] n.

1. A handheld electronic device, especially an iPhone or iPod Touch
2. Yet another handy substitute for thinking

Language of Origin: Seteran

Mike is extremely fond of his iPod Touch, and he always uses it to find any information his built-in brain is unable to come up with unassisted. I believe it was in Spanish class that we first referred to it as his brain, and the term has taken off from there. There is now Mike's brain (the iPod) and Brain one-point-oh (the original). Of course, it is not limited to Mike; it can be used to refer to any heavily relied on electronic device.