1. (verb)back out move out of a space backwards
"He backed out of the driveway"
2. (verb)retreat, pull back, back out, back away, crawfish, crawfish out, pull in one's horns, withdraw make a retreat from an earlier commitment or activity
"We'll have to crawfish out from meeting with him"; "He backed out of his earlier promise"; "The aggressive investment company pulled in its horns"
Definition of 'back out'
