the completion of the following sex acts during one day between a committed couple:
its purpose to promote wholesomeness through varied expressions of intimacy between two persons
Gabrielle: wanna Holy Grail this weekend?
Mark: oh yes, that sounds wonderful. we do have some weekend plans, though.
Gabrielle: yeah, true, we'll have to work those plans around Holy Grailing.
Mark: we always do!
An innocuous and playful way for a new couple to refer to the possibility of procreating. Using this term the couple can discuss the future, and can therefore feel closer to one another, but still use uncertain language to feel less emotionally vulnerable.
do you think of the plan to have a baby?
Gwyndelyn: hey! you can't call it that yet.
Alethaiden: Oh sorry, the non-plan.