unfuck

Etymology
From, originally US military slang. For the sense of making a mistake, see.

Verb

 * 1)  To correct or fix (a mistake or problem).
 * 2)  To undo the act of copulation with (a person) or its consequences.
 * 1)  To undo the act of copulation with (a person) or its consequences.
 * 1)  To undo the act of copulation with (a person) or its consequences.
 * 1)  To undo the act of copulation with (a person) or its consequences.
 * 1)  To undo the act of copulation with (a person) or its consequences.

Usage notes

 * As modification to history is typically hypothetical, the sense concerning copulation is usually used in a negative construction.