This is when your grandparent has an unknown gender and or laser vision.
My granda just cut me some food with their laser vision
It has the same meaning as palatial regalia. Me and a friend made this up.
Hey Granda Patatta come here!
You have a Granda Patatta!
Cunt that's been in aw eh wars, aw eh films n been pished through aw em.
Mind uncle granda pure mad saving Ryan