To mention something casually, offering few details. You can't just brush over the fact that you got engaged—tell me everything!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
brush over someone or something
Fig. to deal lightly with an important person or matter; to just barely mention someone or something. I want to hear more. You only brushed over the part I was interested in. You only brushed over the bit about your girlfriend. Tell us more about her.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.