n.
1.profane or obscene expression usually of surprise or anger
2.a commitment to tell the truth (especially in a court of law)
3.a solemn promise, usually invoking a divine witness, regarding your future acts or behavior
Idiom of the Day
bide one's time
to patiently wait for an opportunity to occur.
The vice-president is biding his time as he waits to become president of the company.