It depends on whether I am looking at a spinning beachball or not. If not, then it's my laptop or my MacBook Pro. If the beachball is there, then words that the site censor would replace with asterisks.
I don't have a MBP (yet) but I refer to my computers (a Mac Mini and a white MacBook) as "my computer" or "my laptop".
I never subscribed to the whole "if I say my Mac or my MacBook and call my phone my iPhone instead of my phone, people will think I'm really cool, rich and hip and want to be friends with me!!!111onetwothree" ideology.
I've never heard anyone say "my Ford" to refer to their car, and if I did, I'd probably think "wow, how odd", so I try to not to do the same for my computers or mobile phone.
FrankenBook (my personal name for one that is horribly beat up and made from 3 different models)
CrapBook (for upper macbook when it gets buggy on me)
Its a windows disguised as a macbook
Future wife (dont tell her about the iMac!)
etc... the list goes on...
I love my MBP. I refer to it as one of my kids all of the time. It rounds out my technological little family with my X-box being the oldest, the MBP being the middle child and my kindle being like dog or cat.