It's like being the team player. Taking the responsibility that no one else wants to take, for the benefit of the other "team members."
While on a journey through the deserted island, Greg and his team decided they had to leave one member behind to scout for signs of civilization. They chose Danny to take the fat chick.
"Way to take the fat chick!"
"I'll take the fat chick!"
"He's taking the fat chick!"