This phrase can be broken up into two parts. "Tax That Ass" is to have sex with a female in a manner that depletes the energy of the female; in a sense, "taxing" her stamina. The second part, "Like Woah," emphasizes the taxing of the ass.
1) That bitch desires my penis, I'm about to tax that ass like woah!
the coolest family in the lego family tree, mainly focused in a training unit, they are all smart, and not dumb, they all lost their virginity at 8 cause they are gangstas