Yo man, I herd you like to 2gas, so I put a 2gas in ur 2gas so that you can 2gas while you 2gas.
(If you grab both of your opponent's Vespene Geysers as Protoss, he can't get any gas until he blows them up, thus
rendering his army without gas; this results in you being able to Zealot-rush your
opponent effectively)
This is known as lawl chepa (
misspelling of 'lol cheap').