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
lay/light into (someone)
to attack someone with words
When I got to work this morning my boss laid/lit into me about my poor sales performance last month.