Not With It
DEFINITION: To be somehow disoriented or to make little sense.

EXAMPLE: I think Alexis had a little too much to drink. She's not really with it, and I think her husband is slightly embarrassed.
"Gosh, I can't thank you enough for your help! I looked over your edits/suggestions, and I think they make the essay much better. "
C. Nelson
Graduate Student
University of Colorado