How to make this choppy, pumping sounding lead

[Bass Gorilla]

Hi I have tried to find a tutorial and tried figuring it out on my own but I cannot get the desired effect so would love if someone more knowledgable could help me. I think it may be a gate or side chain compressor to a ghost track or even some sort of lfo tool but just cannot get it right. It is the pumping sound at 1:30 at the drop

http://www.soundcloud.com/culturecode/a ... code-remix