Is it racist to view a black girl as a goofball?

Not in a mean way, in a nice way.

Context: She uses her colliqual slang, she's a nice, good girl maybe but sometimes like you know how girls are, she laughs a lot and talk fast and stuff she is not ghetto or whatever the white dude doesn't understand everything she says but enjoys hearing her talk and respects the girl

The white dude calls her a goof ball

Should she get mad or react?
Is it racist to view a black girl as a goofball?
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