Erase the Entry Immediately, of course.

"I CAN'T GO TO CLASS LIKE THIS!!!" Mineta screamed, as he hurriedly struggled to find an eraser.

"Maybe I can erase the entry and it'll reverse the effects... OH FUCK, I WROTE IT IN PEN. FUCK!!!"

Mineta's freakish girth was being awkwardly tugged and dragged along, as he was rushing around. Mineta was having difficulty trying to pull it along and nearly tripped over it a couple of times in his less-than aware state.

Picking the same pen that he had written the entry with, Mineta etched a line through the entry, pleading aguishly, "PLEASE!!! Please say I can cross it out."

Just as he had prayed, he became instantly aware that his penis was now back to the same small... small size that it had been before.

"YES. OH THANK YOU. I MISSED YOU SO M- much... I guess," Mineta's exuberance was lost, once he looked back down as what he was packing again.

Having finally solved the dilemma, Mineta now stared down at the blank book before him.

This book really could let him write his own reality.