What does "On the Side" mean?

If you hear a truck driver say "On the Side" on their CB radio, it's just another way to say "Standing by and monitoring a channel." Also referred to as "On the Standby" or sometimes also means "pulled over on the side of the road." There are hundreds of other popular CB slang phrases - to learn more, check out the links below or browse the rest of our online CB slang dictionary.