IM Sloth

Instant Message Sloth - The term for a person who takes WAY TOO LONG to type a reply to an instant message, text message, or Facebook PM, and when they complete the reply it is a short answer or single sentence.

"Janet is an IM Sloth. I asked her a simple question via instant message and her typing indicator showed she was answering for 15 minute. When she finally replied her answer was 'YES'"