1
general::
Phrase(s): slip out (of something)
1. to sneak out of a place unnoticed. • Gloria slipped out of the theater at intermission. • She slipped out and went home. 2. to slide out of an article of clothing. • She slipped out of her dress and hung it neatly in the closet. • Ted slipped out of his T-shirt and left it on the floor where it fell., Phrase(s): slip out
1. [for someone] to exit quietly without bothering anyone. • I slipped out during intermission. 2. [for information] to be spoken without realizing that it is secret or privileged. • The secret about her divorce slipped out when we were discussing old friends.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. See LET SLIP OUT. 2. Also, slip away or off. Leave quietly and unobtrusively, as in She slipped out without telling a soul, or Let's slip away before the sermon, or Jason and Sheila slipped off to Bermuda. The use of slip with away dates from about 1450; out from the first half of the 1500s; off from the mid1800s.
American Heritage Idioms