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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.
Hey bro, you're about as real as a step-grandad!
via giphy
by Smell the roses October 01, 2016
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