Elizabeth: you wanna chill at the mall over break?
Sarah: yeah! I'm down!
Joseph: nahh
Elizabeth: Sarah always pulls through.
Elizabeth wanted to do something over break instead of boring herself at home. When others didn't want to go, Sarah pulled through when she agreed to go.
Housemate 1: you were in the toilet a long time, where you pulling or shutting?
Housemate 2: both. I find it more efficient time wise. It's called pullshitting.