Top Definition
1. to stay relaxed, keep it solid and be stress free.

2. keep your cool at any given situation knowing stressing out wont help.
3. to not let your negative emotions control you; think with your head.
4. stay positive
Bob: Dude! they're kicking us out for something we didn't even do?! WTF
Tom: I'll talk to the manager about this and see if i can work things out.

Bob: Good because thats not cool.
Tom: Keep it mellow bro. its not the time to be stressing. plus, we can always find something way better and funner to do.
by FR0yo May 28, 2012

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