the gummy claymation character was a bit dense and slow talking... Scratching his head in bewilderment... Making single syllable noises "doh" and being awkward.
Gumby is often used to describe someone who just did something really stupid or ruined a joke or just someone you really hate. Gumby is often combined with "ass" and "as fuck"
That dude just asked if the golden gate bridge was in new york... "Man that was Gumby as fuck"
Nick why did you tell her I liked her... "Because your Gumby ass needed a boost"