d=>

1. This is a "text" way of representing the old cliche` "blowing the smoke off the end of the barrel of a gun".
The "d" is the hand/barrel, the "=" is the air being blown, and the ">" is the mouth, facing right.
2. Means "end of discussion"

When Amanda dumped Tony, she ended her e-mail with "d=>"

by Havoc2 November 9, 2008