a way to show that you find the situation sexually tense or awkward, in which you place both hands infront of you, palms down, one on top of the other, and stroke the lower one with the upper one while twirling your thumbs.
Tim: Did you hear about Brenda?
Jim: Yeah, She said she couldnt cook for shit, and then her crush asked her if she sucked!
Tim: yeah dude, that is seriously awkward turtle
Jim:Sexually awkward turtle! *does the turtle sign*