1 definition by Ronald McLikesChildren

A Grandmaster is someone who asserts male dominance in the presence of females in an attempt to impress them. A trait of a Grandmaster is to throw up a spiderman hand symbol in all pictures, this hand signal tells all other males to stay away because the Grandmaster has claimed his territory.
That kid is pulling a grandmaster in front of all these girls.
by Ronald McLikesChildren April 1, 2019
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