A granny Katie is some teen who just has that granny style and is typically the mom of the group. The biggest clue to the granny style is the metal from oldish looking glasses.
Person: Yooo did u see their new glasses, they are such a granny Katie
When a granny with no teeth gives u delectably good head with those gummies of hers
I went granny gumming last night, don't tell Kyle it was his granny.
When people feud like old ladies over something that doesn't need to be argued over.
Tom: hey Billy what is making our moms so mad over baseball and dinosaurs to where they are arguing so childishly?
Billy: They're in a Granny War right now Tom. Give it time and their childishness will (hopefully) pass.
The ultimate and the worst insult, worse than your mom and your granny.
your great-granny a gay tranny.
Any male who kisses the butt of an old woman, in chat, (usually a hag from the UK) in an attempt to gain favor or sexual pleasure from them.
The granny fluffer was in discord being a cuck.
A young yet mature woman who does not not partake in the act of "turning up".
A. Oh my God it's getting late!
B. Calm down Granny Grace its only 9pm.