A combination of focusing and concentrating. Most commonly used when one cannot focustrate, or is trying to. Is similar, but not quite synonymous, to focustraight.
"Dude, shut up! I can't focustrate on my essay with you talking on you cell like that!"
Facebookfrustration. When you are frustrated with facebook for any reason, whether it keeps showing an error, won't let you login, won't upload photos, etc.
"Sorry I haven't been able to post the pictures from your wedding, I've been having a problem uploading any photos onto facebook lately!!!"