When any part of the body appears to take on the characteristics of rubber, usually resulting from an impact.
Gustav: Wow dude, you slammed your leg pretty hard. I thought you broke it!
Bartholomew: Yeah, I know. If you watch the video in slow motion, you can see my leg take the Gumby Effect.
Bartholomew: Yeah, I know. If you watch the video in slow motion, you can see my leg take the Gumby Effect.
by ThePrajekt January 26, 2010