Auto-Emote After Releasing Movement Key

[Agent X-49]

I didn't find a definitive answer to this question while searching the forums/wikis, so I'll ask it here:

 

Is there a way to write a bind that performs a movement action on press and fires an emote command on release of that same key?

 

e.g. something like: /bind W "e GhoulFlex$$+forward"

I was experimenting with variations on this yesterday, and only got intermittent results. Sometimes the animation would fire and cancel, sometimes I'd be stuck going forward until I de-toggled the movement action. I know you can do something like this with the flypose<#> emotes, but is it possible with other emotes somehow?