A sexual act which is synonymous with the "Vulcan Death Grip" or "Vulcan Nerve Pinch".
The Vigorous Vulcan is a brutal, soul crushing and mentally demoralizing handjob. Your
chicken will be literally choked- your monkey mercilessly spanked-your bishop
beat until crippled.
Subsequently, your member will have the same fate as the majority of Star Trek's Red Shirts:
Death in Agony, along with enough friction-burn to ensure that it looks like a red shirt in the first place.