Those who’ve watched the clip of Sen. Chuck Grassley talking about whether his public salary means he has “lived off the public tit— might be, er, tittering about the use of such a coarse expression by the generally clean-cut Senator.[IMGCAP(1)]But HOH feels it is her duty to note that the Iowa Republican’s use of the naughty expression during a Tuesday appearance on C-SPAN’s “Washington Journal— marks the third time in a year that he’s used a similar turn of phrase in a public setting.In March, Grassley complained during a press conference that bailout recipient American International Group was “sucking on the tit of the taxpayer.— And way back in January, HOH quoted the Iowa Republican as complaining that rural states are “always sucking the hind tit— when it comes to children’s health insurance legislation.When we first noted the burgeoning trend, we chalked the earthy idiom up to Grassley’s farming background.But now it seems that Grassley’s just milking the attention …Submit your hot tips, juicy gossip or comments here.Can’t get enough HOH? Get a midday dose of fun and gossip with HOH’s One-Minute Recess, delivered to your inbox daily. Sign up here — because everyone deserves more recess.