Off-topic
Example:
A MESSAGE BOARD TOPIC:
A: So has anyone seen the new Star Wars movie?
B: Yeah, it was great!
C: Hey whats that new song by The Killers called?
A: Wow, that was really off-topic.
A MESSAGE BOARD TOPIC:
A: So has anyone seen the new Star Wars movie?
B: Yeah, it was great!
C: Hey whats that new song by The Killers called?
A: Wow, that was really off-topic.