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| a fool or simpleton; ninny. |
| the offspring of a zebra and a donkey. |
| back out | |
| —vb (often foll by of) | |
| to withdraw (from an agreement, etc) | |
back (bāk)
n.
The posterior portion of the trunk of the human body between the neck and the pelvis; the dorsum.
The backbone or spine.
back definition
|
back out
Move or retreat backwards without turning; same as back away, def. 1.
Also, back out of something. Withdraw from a situation, or break an agreement or engagement. For example, After the announcement appeared in the papers, Mary found it doubly difficult to back out of her engagement to Todd. [Early 1800s] Also see go back on.