This would be the most simple opener for most terran players as it walls in your base providing adequate defence .
Dext: "I'm going to turtle to counter the zergling rush then focus on my eco."
Zone: "Alright . Same goes for me then."
(n.) A video game player who exhibits such a style of play.
(adj.) In video games, prone to or executed in such a style of play.
Turtle: It's like being a walking house that eats lettuce.
:I got stuck behind some turtles, so I had to walk all the way around.
-Hahaha those damn Turtles!