Grinching

Having a large, surprising erection from a penis of below-average size.

The term is derived from the climax of Dr. Seuss’s How The Grinch Stole Christmas: “And what happened, then? Well, in Whoville they say — that the Grinch’s small heart grew three sizes that day.”

“That ho was so fine, I was grinching before we even got back to her dorm!” Xander exclaimed, “it was about time to I laid the rumors of my small dong to rest.”