An alias of a someone who deals or grows marijuana, often used by a person who have a grotesque and disgusting appearance. If you ever meet someone whose last name Seedsman ask them for some Marijuana if they deny you some the bliss of Marijuana, you have the there permission to hug them.
You: Hey Sharlet Seedsman can I get some Marijuana?
Sharlet: What the f%#k?
You: *Awkwardly hugs Sharlet
Sharlet: WHAT THE F#%K!?!
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