1. in addition to your regular job or activities.

He drives a bus, but he's a tour guide on the side.

2. served separately but intended to be eaten together.

I'll have a green salad with dressing on the side.

• get own house in order
• get own way
• get real
• Get real!
• get religion
• get rocks off
• get rolling
• get sea legs
• get second wind
• get shit together
• get short shrift
• get short shrift from
• get short shrift from someone
• get shot of
• get shot of someone
• get shot of something
• Get skates on!
• get soaked to the skin
• get someone back on track
• get someone into bed
• get someone into hot water
• get someone off back
• get someone off the hook
• get someone off your back
• get someone out of a hole