Top definition
The koolest guy on the internet.
grannyman is Honestly cooler than any of you l4m3rs.
by crucifix April 20, 2004
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2
The most l33t member of a forum/bulletin-board or on IRC.

Too cool to handle.
grannyman is so l33t! OMFG I wanna be like him!
by max April 19, 2004
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3
one who is not up to date with the young ones. A millennial embarrassment!!!!!!!!! Often talks in Shakespeare language
"hit the woah!"
"what art thou woah?"
"YOU ARE SUCH A GRANNYMAN!!!"
by grannygal August 18, 2019
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