1.If you are sexually attracted to someone's grandad
2.If you dont want to use yer mum or yer dad as a comeback
3.If your shit at comebacks

Grandads ashes. I accidently ate my grandads ashes because it looked like coco powder and it looked good... '¬'

Step-grandad

A man's pathetic and rather quite sad attempt at being a real grandad. A delusional man whose step-son/daughter has had a child and for some strange reason believes he is the grandad of the child, who shares not 1 Iota of DNA with said grandad!

2. Step-grandad

Delusions of grandeur by a life long non achiever, futile attempt of having the one thing not even his sister can give him... a real grandchild!
See also IMAGINARY FRIEND.

old codgers pearly nozzle mustard (aka) curdled pentioners milk,
or some times reffered to in retirement homes as 'off milk'

When someone has kinda good legs but not really

Worse that ur mom gay, ur dad lesbian, and ur granny tranny all combined.

The So Called Inventor Of The Word Lol, And Many Insults Known To The Internet Generation.