To win this achievement, you have to suck the ice lolly to nothing in Succulent.
To do this, move the mouse upwards in order to get the ice lolly in the guy's mouth and then just move the mouse around as much as possible. It takes around 3 - 5 minutes of doing this, depending on how quickly you're moving the mouse and if you keep taking the ice pop out.
After around 5 minutes, the ice lolly will eventually be sucked into nothing, leaving behind a stick and an achievement.