Also known as monkey flip, the attacker jumps on the victim and grabs him by his chest, then rolls to his back to catapult the victim across move.
Instead of people known for giving other people Estacas, it's more associated with the people who take the move. Certain usual victims, like Sangre Azteca and Loco Max are known for their ability to fly all the way across the ring on monkey flips.
Estacas have also been used as a tag team set up maneuver. One partner will fling his ally towards an attacker, usually to set up a headscissors on an victim.