These are, uh... Oh, those are Mr Lebowski's children, so to ...
The Dude: These are, uh...
Brandt: Oh, those are Mr Lebowski's children, so to speak.
The Dude: Different mothers, huh?
The Dude: Racially he's pretty cool?
Brandt: [laughs] They're not literally his children. They're the Little Lebowski Urban Achievers - inner city children of promise but without the necessary means for a - necessary means for a higher education. So Mr Lebowski is committed to sending all of them to college.