1
general::
Cursorily, quickly, as in I did go over the program once over lightly, but perhaps I should read it more carefully. [Colloquial; mid-1900s]
American Heritage Idioms
2
general::
Phrase(s): once-over-lightly
1. Fig. a quick and careless treatment. (A noun. Said of an act of cleaning, studying, examination, or appraisal.) • Bill gave his geometry the once-overlightly and then quit studying. • Ann, you didn’t wash the dishes properly. They only got a once-over-lightly. 2. Fig. cursory; in a quick and careless manner. (An adverb.) • Tom studied geometry once-over-lightly. • Ann washed the dishes once-over-lightly.
McGrawhill's American Idioms And Phrasal Verbs