In Senegal's capital Dakar, administrator Idrissa Fall said "we can not really say that he (Trump) is wrong". "Made up by Dems", Trump wrote.
Trump appeared to deny using the term later in tweet. "Probably should record future meetings - unfortunately, no trust!" he said.
Trump was widely reported on Thursday to have questioned in a meeting with lawmakers why the United States should accept more immigrants from Haiti and "shithole countries" in Africa rather than from places such as Norway. He did not specifically deny using the word "shithole".
It said in a statement that it had asked the USA government, through its ambassador, to "clarify" if the derogatory remark also applied to Botswana given that there were Botswana nationals living in the United States and others who wished to go there.
Trump's Republicans were also plainly unhappy, with House Speaker Paul Ryan describing the reported comments as "very unfortunate" and "unhelpful". He said these hate-filled things. "But you know what I thought of right away?"
The reported slur was directed at unspecified African countries and Haiti, according to the Post and the Times.
At one point, Trump, according to two sources, said: "Why do we want all these people from Africa here?"
As for immigrants from Africa, the president suggested that instead, the US should allow more entrants from countries like Norway.
"For this president to say that that country is a sh-thole, I felt like he was talking about my father-in-law, my husband, our children, because they are Haitian", she continued.
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The president's remark is "unkind, divisive, elitist, and fly in the face of our nation's values", she said.
Haitian governments were for many years militaristic, which some trace to a tradition of resisting French attacks after independence.
None of the lawmakers knew Carson, and Trump found that surprising, the attendees said. "Today, Haitians are still here working hard, contributing to the social and economic fabric of this country". Durbin noted that Graham confronted the president about his remarks.
In the wake of Trump's comments, attention has shifted away from the contents of a proposed DACA deal to a statement many view as racist.
South African comedian Trevor Noah, star of "The Daily Show", described himself as an offended citizen of "South Shithole" and also criticised Mr Trump's preferred choice of Norway for immigrants.
Trump on Friday panned the "so-called bipartisan DACA deal" as "a big step backwards". It "continues to build support for the only deal in town", he said. "That's not how a president behaves", Simpson said.
"Most of all, it's not what a president should believe", tweeted the Democratic former vice president Joe Biden.
"We're better than this", he added. Trump's request covers 74 miles of border wall as part of a 10-year, $18 billion proposal.
Norwegians have also been tweeting about why they will not be moving to the United States.
At the United Nations, rights office spokesman Rupert Colville called them "shocking and shameful".
Trump's remarks, the latest example of his penchant for racially tinged remarks denigrating immigrants, left members of Congress from both parties attending the meeting in the Cabinet Room alarmed and mystified.