Pulling out and Pull up

Pulling out noun - A method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation.

Pull up is a synonym for pulling out. In some cases you can use "Pull up" instead a verb phrase "Pulling out".

Pull up verb - To bring (something) to a standstill.

Pulling out is a synonym for pull up. Sometimes you can replace phrase "Pulling out" with "Pull up", this terms are similar.