She went off into tangents

This one was uttered by a daughter describing her teacher to her mother.  It is a mash up of “off on a tangent” and ” off into space”.  As “my ol’ pal” notes, being “off target” might also play in the mix here.   Thanks to Frances for this one!

English: law of tangents - sketch.

English: law of tangents – sketch. (Photo credit: Wikipedia)