cari istilah yang lo mau, kaya' sex:
An intense feeling of love for one's grandpa. Most notably shown by Earl Pickles and Nelson Wolfe.
Nelson: Hey grandpa! It's a gramptastic day out there!

Earl: You're right! What's say we hit the rocktrail and look for some rocks.

Nelson: Nothing more gramptastic than that
dari Dusty's Baby Powder Sabtu, 02 Oktober 2010