A grandmother who, in her many years, has began to look like an old man.
Whoa...I didn't think your grandma was that old, she's, like, a grandman now.
by Dalek Sec November 1, 2007
Get the Grandman mug.
A grandman is the coolest grandfather that still look very young in his 30s and is in good shape.
LL Cool J is a perfect example of how a grandman look.
by agentmike204 February 6, 2020
Get the Grandman mug.