rigor viva
Tension or numbness in the extremities felt in the period building up to or during the petit mort. Like rigor mortis but you feel it before you cum not after you die.
"That big ol' dick really gave me a touch of the rigor viva in the tips of my toes while it was re-arranging my guts."
"I grabbed her ass so tight my hand got rigor viva."
"I grabbed her ass so tight my hand got rigor viva."