As Twitter users do, they quickly seized on the phrase and turned it into a hashtag, #badhombres. Hombre in Spanish means man.
The reference came up when moderator Chris Wallace asked Clinton and Trump to defend their plans on immigration. Both reverted to familiar themes.
Trump went with the border wall, victims of crimes committed by people here illegally and the pledge that he would deport the "bad hombres."
Clinton raised the issue of splitting families and blasted Trump's mass deportation plan. She also vowed to work on immigration reform in her first 100 days.
But just short of 10 minutes into their discussion on immigration, the candidates pivoted to Russia and Vladimir Putin.
The candidates seemed on the verge of a more insightful discussion when Clinton explained the need to bring immigrants here illegally "out of the shadows" into the formal economy so they are not be exploited by employers who pay them lower wages and undermine American workers.
As Clinton was explaining a comment she made about dreaming of open borders in an energy speech, things began to crumble.
The "open borders" remark came to light when Wikileaks posted a transcript of a speech she'd made online. Clinton said that the transcript was obtained through espionage by Russians.
The subject of immigration came up once more when Trump's non payment of taxes was being discussed. Clinton said it was appalling that immigrants here illegally are paying more taxes than "a billionaire," referring to Trump.
Overall there was disappointment with how little was said on immigration.