a contemptible, mean-spirited, or selfish lack of human decency; morally low; without estimable personal qualities; dishonorable; meanspirited; selfish; cowardly.
“What she did was so base.”
“I can’t believe she said that! How base!”
“That was full of base”
Derived from the term "Freebased." Freebasing is the method through which Cocaine is converted to Crack. It can mean revolutionary, or sometimes is used to describe low-class or ratchet.
"The Nazis may have been bad but they did some pretty based shit."
"I think Auschwitz is based."