Do her in the butt

From Wiki Gonzalez

When a Primate mentions a female interest, be it his girlfriend, wife, romantic endeavor, or mother-in-law, the standard response is an adamant exclamation from the Baseball Think Factory crowd to do said female in the posterior (also known as butt, tuckus, or crap factory).

This typically takes the form of "Do her in the butt, [name of Primate]."

Samples include:

"Do her in the butt, Larry." (When discussing Sleepover Girl)

And,

"Do her in the butt, Dan." (When discussing that which shall not be discussed)

The issue of doing her in the butt has been known to prompt an anal sex flamewar.