ALL meanings of on the sly
on the sly
O o - adverb on the sly secretly 1
- adjective on the sly cunning or wily: sly as a fox. 1
- adjective on the sly stealthy, insidious, or secret. 1
- adjective on the sly playfully artful, mischievous, or roguish: sly humor. 1
- idioms on the sly on the sly, secretly; furtively: a tryst on the sly. 1
- phrase on the sly To do something on the sly means to do it secretly, often because it is wrong or bad. 0
- noun on the sly in a secretive manner 0
- noun on the sly secretly; stealthily 0