Adverb; To be quick, agile in your work, and talented at that. To complete your job or jobs with much efficiency and control that even your boss or higher ups are forced to give you a raise
I dontneed to give an example, I was already dextrous in making this damn definiton.
2 - the panicky paranoid state of mind which inspires one to go through old emails, texts, etc, deleting anything which may be vaguely incriminating
I found my girlfriend going through my phone, but it's ok cos I got a bit deleterious last week and wiped those drunk text messages to my ex from my outbox