Sir Thumbsalot the Green

Snapped this guy up on a telephone pole on 22nd/San Jose.
Maybe I’m being dense here, but I don’t get the metaphor. The joke definitely lies in the thumb head and the knightship, but I really can’t figure out how they’re related. Can anyone enlighten me? Please respond in iambic pentameter only.
I totally don’t get British humor. Oops, humour. If this is a Monty Python ref, I’m gonna be pissed.
Tags: coat of arms, green thumb, hitchhiker's thumb, knight, shield, thumb head, thumbs up
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November 14, 2009 at 3:38 pm
I think this might be a pun on the “Gawain and the Green Knight” legend, and people with “green thumbs.”